diff --git a/CHANGELOG.md b/CHANGELOG.md
index b087d03d03..57d2b08ba4 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,36 +1,38 @@
-# Unreleased
+# Changelog
 
-## New features
+## Unreleased
+
+### New features
 
 - [#1258: Add GOV.UK Mainstream Guide template](https://github.com/alphagov/govuk-prototype-kit/pull/1258)
 
-# 12.0.4 (Fix release)
+## 12.0.4 (Fix release)
 
-## Fixes
+### Fixes
 
 - [#1303: Fix authentication on Glitch](https://github.com/alphagov/govuk-prototype-kit/pull/1303)
 
-# 12.0.3 (Fix release)
+## 12.0.3 (Fix release)
 
-## Fixes
+### Fixes
 
 - [#1182: Replace basic auth with a custom authentication process](https://github.com/alphagov/govuk-prototype-kit/pull/1182)
 
-# 12.0.2 (Fix release)
+## 12.0.2 (Fix release)
 
-## Fixes
+### Fixes
 
 - [Pull request #1269: Replace node-sass with Dart Sass](https://github.com/alphagov/govuk-prototype-kit/pull/1269).  This should allow the kit to work on M1 Macs.
 
-# 12.0.1 (Fix release)
+## 12.0.1 (Fix release)
 
-## Recommended changes
+### Recommended changes
 
 The Design System team has made some changes to GOV.UK Frontend. While these are not breaking changes, implementing them will mean your prototype uses the latest components.
 
 [Read the release notes for GOV.UK Frontend v4.0.1](https://github.com/alphagov/govuk-frontend/releases/tag/v4.0.1).
 
-### Remove the `tabindex` attribute from the error summary component
+#### Remove the `tabindex` attribute from the error summary component
 
 If you're not using Nunjucks macros, remove the `tabindex` attribute from the error summary's HTML. The component JavaScript now adds and removes this attribute.
 
@@ -38,13 +40,13 @@ This change was introduced in [pull request #2491: Prevent error summary from be
 
 If you need help with the Prototype Kit, [contact the GOV.UK Prototype team](https://design-system.service.gov.uk/get-in-touch/).
 
-# 12.0.0 (Breaking release)
+## 12.0.0 (Breaking release)
 
-## Breaking changes
+### Breaking changes
 
 This release ensures the GOV.UK Prototype Kit reflects the latest release of the GOV.UK Frontend, v4.0.0.
 
-### Update to GOV.UK Frontend v4.0.0
+#### Update to GOV.UK Frontend v4.0.0
 
 The new release of GOV.UK Frontend contains:
 - an iteration to the accordion component
@@ -54,9 +56,9 @@ Check the [GOV.UK Frontend release notes](https://github.com/alphagov/govuk-fron
 
 This change was added in [#1195: Update the GOV.UK Prototype Kit to use GOV.UK Frontend v4.0.0](https://github.com/alphagov/govuk-prototype-kit/pull/1195).
 
-## New features
+### New features
 
-### Preserve query strings when redirecting POSTs to GETs
+#### Preserve query strings when redirecting POSTs to GETs
 
 The GOV.UK Prototype Kit now preserves URL query strings when redirecting POST requests to GET requests.
 
@@ -72,7 +74,7 @@ Thanks to [@edwardhorsford](https://github.com/edwardhorsford) for contributing
 This was added in [#1120: Preserve query string when redirecting POSTs to GETs](https://github.com/alphagov/govuk-prototype-kit/pull/1120).
 
 
-## Fixes
+### Fixes
 
 - [#1155: Replace `keypather` package with `lodash.get`](https://github.com/alphagov/govuk-prototype-kit/pull/1155)
 
@@ -80,9 +82,9 @@ If you need help with the Prototype Kit, [contact the GOV.UK Prototype team](htt
 
 
 
-# 11.0.0 (Fix release)
+## 11.0.0 (Fix release)
 
-## Fixes
+### Fixes
 
 We’ve recently experienced 2 security incidents involving common NPM packages used by the Prototype Kit. We’re sorry for the inconvenience this has caused.
 
@@ -94,14 +96,14 @@ To protect your service from any similar threats in future, please upgrade to th
 
 For any existing prototypes, follow the guide to [update the kit](https://govuk-prototype-kit.herokuapp.com/docs/updating-the-kit).
 
-## Pull requests
+### Pull requests
 
 [Pull request #1143: Add a package-lock.json file](https://github.com/alphagov/govuk-prototype-kit/pull/1143).
 
 
-# 10.0.0 (Breaking release)
+## 10.0.0 (Breaking release)
 
-## Breaking changes
+### Breaking changes
 
 You must make the following changes if you’re running Node.js 10 and you update to this release, or your prototype may break.
 
@@ -113,24 +115,25 @@ If you currently run Node.js 10, you'll need to upgrade to a newer version.
 
 We recommend using version 16. You can find more information on the [Prototype Kit requirements page](https://govuk-prototype-kit.herokuapp.com/docs/install/requirements.md).
 
-### Upgrade Notify client library from version 4.7.2 to 5.1.0
+#### Upgrade Notify client library from version 4.7.2 to 5.1.0
 
 We have updated the Notify client library to version 5.1.0. This may break existing prototypes that are using the Notify client. Big thanks to [David McDonald](https://github.com/idavidmcdonald).
 
-## Breaking change pull requests
+### Breaking change pull requests
 
 - [Pull request #925: Upgrade Notify client library from 4.7.2 to 5.1.0](https://github.com/alphagov/govuk-prototype-kit/pull/925). This may break existing prototypes which are using the Notify client. If you have any issues, please [contact the GOV.UK Prototype Kit team](https://design-system.service.gov.uk/get-in-touch/).
 - [Pull request #1127: Update to Node 16 and drop support for Node 10](https://github.com/alphagov/govuk-prototype-kit/pull/1127)
 
-## Fixes
+### Fixes
 
 - [Pull request #1133: Remove express-writer from package file](https://github.com/alphagov/govuk-prototype-kit/pull/1133)
 
-# 9.15.0 (Feature release)
 
-## New features
+## 9.15.0 (Feature release)
+
+### New features
 
-### Update to GOV.UK Frontend 3.14.0
+#### Update to GOV.UK Frontend 3.14.0
 
 Added in [Pull request #1108: Update to GOV.UK Frontend v3.14.0](https://github.com/alphagov/govuk-prototype-kit/pull/1108)
 
@@ -139,7 +142,7 @@ This release contains:
 - changes to the `govuk-spacing` function to allow negative spacing
 - a fix for an accessibility issue with the panel component
 
-### Replace back link placeholder URLs with JavaScript
+#### Replace back link placeholder URLs with JavaScript
 
 We've added JavaScript to make the [back link component](https://design-system.service.gov.uk/components/back-link/) take users to the previous page by default, rather than you having to update placeholder text.
 
@@ -149,7 +152,7 @@ You can still override the `href` attribute if you need to provide a solution th
 
 This was added in [Pull request #1103: Replace back link placeholder URLs with JavaScript](https://github.com/alphagov/govuk-prototype-kit/pull/1103)
 
-### Update Node.js to protect your code
+#### Update Node.js to protect your code
 
 If you use the GOV.UK Prototype Kit, we recommend you update to use the latest version of Node.js 14 Long Term Support (LTS). This is to make sure you're protected from a [recent security vulnerability in the npm (Node Package Manager)](https://github.blog/2021-09-08-github-security-update-vulnerabilities-tar-npmcli-arborist/).
 
@@ -157,34 +160,34 @@ To make sure you're using Node.js version 14.17.6 or later, [follow the install
 
 If you're using Node Version Manager (nvm), you can instead [run `nvm install` to install v14.17.6](https://github.com/alphagov/govuk-prototype-kit/pull/1076).
 
-## Fixes
+### Fixes
 
 - [Pull request #1104: Change visually hidden footer title](https://github.com/alphagov/govuk-prototype-kit/pull/1104)
 
-# 9.14.2 (Fix release)
+## 9.14.2 (Fix release)
 
-## Fixes
+### Fixes
 
 - [Pull request #1036: Update to GOV.UK Frontend v3.13.1](https://github.com/alphagov/govuk-prototype-kit/pull/1069)
 - [Pull request #1050: Do not swallow errors from `session-data-defaults.js`](https://github.com/alphagov/govuk-prototype-kit/pull/1050)
 
-# 9.14.1 (Patch release)
+## 9.14.1 (Patch release)
 
-## Fixes
+### Fixes
 
 - [Pull request #1039: Run Gulp using the Node executable to fix permissions problem on GDS-managed devices](https://github.com/alphagov/govuk-prototype-kit/pull/1039)
 
-# 9.14.0 (Feature release)
+## 9.14.0 (Feature release)
 
-## New features
+### New features
 
 - [Pull request #1036: Update to GOV.UK Frontend v3.13.0](https://github.com/alphagov/govuk-prototype-kit/pull/1036)
 
-# 9.13.0 (Feature release)
+## 9.13.0 (Feature release)
 
-## New features
+### New features
 
-### Make Sass errors clearer to users
+#### Make Sass errors clearer to users
 
 Previously, it was not obvious to users if Sass had stopped updating because of an error. An error would be printed to the command line, but nothing would happen in the browser. We know that this error was easy to miss, which could cause confusion.
 
@@ -196,7 +199,7 @@ We have also changed the [Gulp](https://www.npmjs.com/package/gulp-sass) log lev
 
 This was added in [Pull request #990: Make Sass errors clearer to the user](https://github.com/alphagov/govuk-prototype-kit/pull/990).
 
-### Opt in to the new GOV.UK Frontend link styles
+#### Opt in to the new GOV.UK Frontend link styles
 
 Links now have underlines that are consistently thinner and a bit further away from the link text.
 
@@ -208,78 +211,78 @@ Read more about the new link styles in the [GOV.UK Frontend release notes](https
 
 This was added in [Pull request #1012: Implement the new link and hover styles in the Prototype Kit](https://github.com/alphagov/govuk-prototype-kit/issues/1012).
 
-### Update to GOV.UK Frontend
+#### Update to GOV.UK Frontend
 This was added in [Pull request #1025: Update to GOV.UK Frontend v3.12.0](https://github.com/alphagov/govuk-prototype-kit/pull/1025)
 
-## Fixes
+### Fixes
 
 - [Pull request #995: Allow Node 15 to be used](https://github.com/alphagov/govuk-prototype-kit/pull/995)
 
-# 9.12.1 (Patch release)
+## 9.12.1 (Patch release)
 
-## Fixes
+### Fixes
 
 - [Pull request #987: Import the cookie banner macro as part of the layout](https://github.com/alphagov/govuk-prototype-kit/pull/987)
 
-# 9.12.0 (Feature release)
+## 9.12.0 (Feature release)
 
-## New features
+### New features
 
 - [Pull request #985: Update to GOV.UK Frontend v3.11.0](https://github.com/alphagov/govuk-prototype-kit/pull/985)
 
-## Fixes
+### Fixes
 
 - [Pull request #983: Remove the outdated 'GOV.UK uses cookies to make the site simpler' cookie banner](https://github.com/alphagov/govuk-prototype-kit/pull/983)
 
-# 9.11.2 (Patch release)
+## 9.11.2 (Patch release)
 
-## Fixes
+### Fixes
 
 - [Pull request #971: Update to GOV.UK Frontend v3.10.1](https://github.com/alphagov/govuk-prototype-kit/pull/971)
 
-# 9.11.1 (Patch release)
+## 9.11.1 (Patch release)
 
-## Fixes
+### Fixes
 
 - [Pull request #966: Import the notification banner macro as part of the layout](https://github.com/alphagov/govuk-prototype-kit/pull/966)
 
-# 9.11.0 (Feature release)
+## 9.11.0 (Feature release)
 
-## New features
+### New features
 
 - [Pull request #962: Update to GOV.UK Frontend v3.10.0](https://github.com/alphagov/govuk-prototype-kit/pull/962)
 
-## Fixes
+### Fixes
 
 - [Pull request #938: Update Marked module to fix security issue](https://github.com/alphagov/govuk-prototype-kit/pull/938)
 - [Pull request #944: Disable Browsersync ghostMode to stop interactions being mirrored across tabs and devices](https://github.com/alphagov/govuk-prototype-kit/pull/944)
 - [Pull request #948: Fix Sass files being copied to public directory](https://github.com/alphagov/govuk-prototype-kit/pull/948)
 
-# 9.10.1 (Patch release)
+## 9.10.1 (Patch release)
 
 - [Pull request #936: Update to GOV.UK Frontend v3.9.1](https://github.com/alphagov/govuk-prototype-kit/pull/936)
 
-# 9.10.0 (Feature release)
+## 9.10.0 (Feature release)
 
-## New features
+### New features
 
 - [Pull request #928: Update to GOV.UK Frontend v3.9.0](https://github.com/alphagov/govuk-prototype-kit/pull/928)
 
-# 9.9.0 (Feature release)
+## 9.9.0 (Feature release)
 
-## New features
+### New features
 
 - [Pull request #908: Update to GOV.UK Frontend v3.8.0](https://github.com/alphagov/govuk-prototype-kit/pull/919)
 
-## Fixes
+### Fixes
 
 - [Pull request #913: Fix security issue when running on Glitch](https://github.com/alphagov/govuk-prototype-kit/pull/913)
 
-# 9.8.0 (Feature release)
+## 9.8.0 (Feature release)
 
-## New features
+### New features
 
-### Updated task list template
+#### Updated task list template
 
 The task list pattern has been updated to make incomplete tasks clearer to users. This change [has also been made to the pattern in the Design System](https://design-system.service.gov.uk/patterns/task-list-pages/).
 
@@ -292,35 +295,35 @@ If you're updating from an older version, in your `app/assets/sass/patterns/task
 
 This was added in [pull request #907: Update Task List template](https://github.com/alphagov/govuk-prototype-kit/pull/907)
 
-# 9.7.0 (Feature release)
+## 9.7.0 (Feature release)
 
-## New features
+### New features
 
 - [Pull request #901: Add support for Node v14](https://github.com/alphagov/govuk-prototype-kit/pull/901)
 - [Pull request #908: Update to GOV.UK Frontend v3.7.0](https://github.com/alphagov/govuk-prototype-kit/pull/908)
 
-# 9.6.1 (Patch release)
+## 9.6.1 (Patch release)
 
-## Fixes
+### Fixes
 
 - [Pull request #884: Bump nunjucks from v3.1.3 to v3.2.1](https://github.com/alphagov/govuk-prototype-kit/pull/884)
 - [Pull request #885: Update various dependencies and fix linting offences](https://github.com/alphagov/govuk-prototype-kit/pull/885)
 
-# 9.6.0 (Feature release)
+## 9.6.0 (Feature release)
 
-## New features
+### New features
 
 - [Pull request #879: Update to GOV.UK Frontend v3.6.0](https://github.com/alphagov/govuk-prototype-kit/pull/879)
 
-# 9.5.0 (Feature release)
+## 9.5.0 (Feature release)
 
-## New features
+### New features
 
 - [Pull request #852: Update to GOV.UK Frontend v3.5.0](https://github.com/alphagov/govuk-prototype-kit/pull/852).
 
-## Fixes
+### Fixes
 
-### Use Prototype Kit-specific patterns in the unbranded template
+#### Use Prototype Kit-specific patterns in the unbranded template
 
 You can now use patterns like [step by step navigation](https://govuk-prototype-kit.herokuapp.com/docs/templates/step-by-step-navigation) and [task lists](https://govuk-prototype-kit.herokuapp.com/docs/templates/task-list) in the [unbranded template](https://govuk-prototype-kit.herokuapp.com/docs/templates/blank-unbranded).
 
@@ -333,44 +336,44 @@ If you're upgrading from an older version, make the following changes.
 
 [#842: Allow Kit specific patterns to be used with the unbranded template](https://github.com/alphagov/govuk-prototype-kit/pull/842).
 
-### Other fixes
+#### Other fixes
 
 - [Pull request #840: Update Kit to use latest active LTS Node.js version 12.x](https://github.com/alphagov/govuk-prototype-kit/pull/840).
 - [Pull request #847: Update step by step patterns to latest](https://github.com/alphagov/govuk-prototype-kit/pull/847).
 
-# 9.4.0 (Feature release)
+## 9.4.0 (Feature release)
 
-## New features
+### New features
 
 - [Pull request #837: Update GOV.UK Frontend to version 3.4.0](https://github.com/alphagov/govuk-prototype-kit/pull/837).
 
-## Fixes
+### Fixes
 
 - [Pull request #815: Prevent exceptions thrown from 'compatibility mode' routes from being silently caught, disabling compatibility mode](https://github.com/alphagov/govuk-prototype-kit/pull/815).
 
-# 9.3.0 (Feature release)
+## 9.3.0 (Feature release)
 
-## New features
+### New features
 
 - [Pull request #814: Update GOV.UK Frontend to version 3.3.0](https://github.com/alphagov/govuk-prototype-kit/pull/814).
 
-# 9.2.0 (Feature release)
+## 9.2.0 (Feature release)
 
-## New features
+### New features
 
 - [Pull request #800: Update GOV.UK Frontend to version 3.2.0](https://github.com/alphagov/govuk-prototype-kit/pull/800).
 
-# 9.1.0 (Feature release)
+## 9.1.0 (Feature release)
 
-## New features
+### New features
 
 - [Pull request #797: Update GOV.UK Frontend to version 3.1.0](https://github.com/alphagov/govuk-prototype-kit/pull/797).
 
-## Fixes
+### Fixes
 
 - [Pull request #796: Update focus states on step-by-step navigation](https://github.com/alphagov/govuk-prototype-kit/pull/796).
 
-# 9.0.0 (Breaking release)
+## 9.0.0 (Breaking release)
 
 This release updates GOV.UK Prototype Kit to v3.0.0 of GOV.UK Frontend.
 
@@ -383,7 +386,7 @@ If you need help updating or installing the Prototype Kit, you can:
 - [contact the GOV.UK Design System team](https://design-system.service.gov.uk/get-in-touch/)
 - talk to a developer on your team
 
-## Breaking changes
+### Breaking changes
 
 You must make the following changes when you migrate to this release, or your prototype may break.
 
@@ -392,7 +395,7 @@ You must make the following changes when you migrate to this release, or your pr
 
 If you’ve created custom code or components, read the [release notes for GOV.UK Frontend v3.0.0](https://github.com/alphagov/govuk-frontend/releases/tag/v3.0.0) for more changes you may need to make.
 
-### Update files in the app folder
+#### Update files in the app folder
 
 To make sure GOV.UK Frontend's files do not conflict with your code, we've moved our package files into a directory called `govuk`.
 
@@ -454,9 +457,9 @@ In the `app/views/layout_unbranded.html` file:
 
 [Pull request #769: Update to GOV.UK Frontend 3.0.0.](https://github.com/alphagov/govuk-prototype-kit/pull/769/files)
 
-### Update HTML in GOV.UK Frontend components
+#### Update HTML in GOV.UK Frontend components
 
-#### Update and add data-module attributes
+##### Update and add data-module attributes
 
 If you’re using HTML versions of GOV.UK Frontend components, add a `govuk-` prefix to `data-module` attribute values. For example:
 
@@ -547,9 +550,9 @@ If you're using HTML, add the SVG code from the [start button example in the Des
 
 [Pull request #1341: Add new start button icon.](https://github.com/alphagov/govuk-frontend/pull/1341)
 
-## New features
+### New features
 
-### Page wrappers now use auto spacing
+#### Page wrappers now use auto spacing
 
 The `<main>` element in layouts now has a `.govuk-main-wrapper--auto-spacing` class by default.
 
@@ -567,55 +570,59 @@ You can also turn off the `.govuk-main-wrapper--auto-spacing` class by using:
 {% set mainClasses = "" %}
 ```
 
-### Continue to use the old colours
+#### Continue to use the old colours
 
 If you want to continue using old colours in your prototype, you can [turn on compatibility mode](https://github.com/alphagov/govuk-frontend/blob/master/docs/installation/compatibility.md).
 
-# 8.12.1
+## 8.12.1
 
-Fixes:
+## Fixes
 
 - [#763 Fix a Sass compilation error in the unbranded stylesheet](https://github.com/alphagov/govuk-prototype-kit/pull/763), which was introduced in 8.12.0.
 
-# 8.12.0
+## 8.12.0
 
-Features:
+### New feature
 
 - [#760 Update to GOV.UK Frontend version 2.12.0](https://github.com/alphagov/govuk-prototype-kit/pull/760) (See GOV.UK Frontend 2.12.0 [release notes](https://github.com/alphagov/govuk-frontend/releases/tag/v2.12.0))
 
-Fixes:
+### Fixes
 
 - [#751 Remove unnecessary settings import from the 'unbranded' stylesheet](https://github.com/alphagov/govuk-prototype-kit/pull/752)
 
-# 8.11.0
+## 8.11.0
+
+### New feature
 
-Features:
 - [#741 Update to GOV.UK Frontend version 2.11.0](https://github.com/alphagov/govuk-prototype-kit/pull/741) (See GOV.UK Frontend 2.11.0 [release notes](https://github.com/alphagov/govuk-frontend/releases/tag/v2.11.0))
 
-# 8.10.0
+## 8.10.0
+
+### New feature
 
-Features:
 - [#722 Update to GOV.UK Frontend version 2.10.0](https://github.com/alphagov/govuk-prototype-kit/pull/722) (See GOV.UK Frontend 2.10.0 [release notes](https://github.com/alphagov/govuk-frontend/releases/tag/v2.10.0))
 
-# 8.9.0
+## 8.9.0
 
-Features:
+### New feature
 
 - [#713 Bump GOV.UK Frontend to v2.9.0](https://github.com/alphagov/govuk-prototype-kit/pull/713).
 
-Fixes:
+### Fixes
 
 - [#697 Only ask for usage permission if TTY](https://github.com/alphagov/govuk-prototype-kit/pull/697). Thanks [zuzak](https://github.com/zuzak) for this contribution.
 - [#712 Turn off npm default auditing](https://github.com/alphagov/govuk-prototype-kit/pull/712).
 
-# 8.8.0
+## 8.8.0
+
+### New features
 
-Features:
 - [#701 Update to GOV.UK Frontend version 2.8.0](https://github.com/alphagov/govuk-prototype-kit/pull/701) (See GOV.UK Frontend 2.8.0 [release notes](https://github.com/alphagov/govuk-frontend/releases/tag/v2.8.0)).
 
-# 8.7.0
+## 8.7.0
+
+### New features
 
-Features:
 - [#613 Update to GOV.UK Frontend version 2.7.0 and adds experimental extensions feature](https://github.com/alphagov/govuk-prototype-kit/pull/613) (See GOV.UK Frontend 2.7.0 [release notes](https://github.com/alphagov/govuk-frontend/releases/tag/v2.7.0)). Big thanks @matcarey (https://github.com/matcarey)
   As this is an **experimental** feature it should be used at your own risk, and is likely to change. Please contact us if you're interested in trying it out.
 
@@ -623,45 +630,47 @@ Features:
 
 - [#683 add guidance for CSS, JavaScript and images](https://github.com/alphagov/govuk-prototype-kit/pull/683)
 
-# 8.6.0
+## 8.6.0
+
+### New features
 
-Features:
 - [#680 Update to GOV.UK Frontend version 2.6.0](https://github.com/alphagov/govuk-prototype-kit/pull/680) (See GOV.UK Frontend 2.6.0 [release notes](https://github.com/alphagov/govuk-frontend/releases/tag/v2.6.0))
 
-# 8.5.0
+## 8.5.0
+
+### New features
 
-Features:
 - [#672 Replace ‘check answers’ pattern with updated code](https://github.com/alphagov/govuk-prototype-kit/pull/672)
 - [#671 Update to GOV.UK Frontend version 2.5.0](https://github.com/alphagov/govuk-prototype-kit/pull/671)
    Allows use of new components Accordion and Summary List
 
-Fixes:
+### Fixes
 
 - [#667 Add acorn dependency to fix npm warning](https://github.com/alphagov/govuk-prototype-kit/pull/667)
 - [#647 Fix link context in step-by-step templates](https://github.com/alphagov/govuk-prototype-kit/pull/647)
 
-Internal:
+### Internal
 
 - [#663 update Standard to 12.0.1](https://github.com/alphagov/govuk-prototype-kit/pull/663)
 - [#640 Replace Mocha with Jest](https://github.com/alphagov/govuk-prototype-kit/pull/640)
 - [#659 Upgrade kit to use Gulp 4](https://github.com/alphagov/govuk-prototype-kit/pull/659)
 - [#664 Remove deprecated gulp-util](https://github.com/alphagov/govuk-prototype-kit/pull/664)
 
-# 8.4.0
+## 8.4.0
 
-New features:
+### New features
 
 - [#642 Update GOV.UK Frontend to v2.4.0](https://github.com/alphagov/govuk-prototype-kit/pull/642)
 
-Bug fixes:
+### Bug fixes
 
 - [#634 Avoid double-nested buttons in step-by-step navigation](https://github.com/alphagov/govuk-prototype-kit/pull/634)
 
 - [#638 Make unbranded template available for use in app/views](https://github.com/alphagov/govuk-prototype-kit/pull/638)
 
-# 8.3.0
+## 8.3.0
 
-New features:
+### New features
 
 - [#628 Update GOV.UK Frontend to v2.3.0](https://github.com/alphagov/govuk-prototype-kit/pull/628)
 
@@ -671,33 +680,33 @@ New features:
 
 - [#539 Add step by step navigation](https://github.com/alphagov/govuk-prototype-kit/pull/539)
 
-# 8.2.0
+## 8.2.0
 
-New Features:
+### New features
 
 - [#609 Update GOV.UK Frontend to v2.2.0](https://github.com/alphagov/govuk-prototype-kit/pull/609)
 
 Also includes a new character-count component
 
-Bug fixes:
+### Bug fixes
 
 - [#605 Set stylesheet media to "all" to allow print styles](https://github.com/alphagov/govuk-prototype-kit/pull/605)
 
 - [#608 Clearing session data now uses a POST request rather than a destructive GET request](https://github.com/alphagov/govuk-prototype-kit/pull/608)
 
-# 8.1.0
+## 8.1.0
 
-New features:
+### New features
 
 - [#600 Update GOV.UK Frontend to v2.1.0](https://github.com/alphagov/govuk-prototype-kit/pull/600)
 
-# 8.0.0
+## 8.0.0
 
-Breaking changes:
+### Breaking change
 
 - [#595 Update GOV.UK Frontend to v2.0.0](https://github.com/alphagov/govuk-prototype-kit/pull/595)
 
-New features:
+### New features
 
 - [Add config to allow permanent session in cookie](https://github.com/alphagov/govuk-prototype-kit/pull/593)
 - [Allow nested field values in session](https://github.com/alphagov/govuk-prototype-kit/pull/573)
@@ -705,32 +714,32 @@ New features:
 - [Make it more difficult to accidentally clear the session data](https://github.com/alphagov/govuk-prototype-kit/pull/588)
 
 
-Bug fixes:
+### Bug fixes
 
 - [Use path to gulp executable for spawn](https://github.com/alphagov/govuk-prototype-kit/pull/479)
 
-# 7.1.0
+## 7.1.0
 
-New Features:
+### New features
 
 - [Update GOV.UK Frontend to v1.3.0](https://github.com/alphagov/govuk-prototype-kit/pull/581)
 - [Rename and reorganise template pages to be easier to use](https://github.com/alphagov/govuk-prototype-kit/pull/578)
 - [Add kit version and link to footer](https://github.com/alphagov/govuk-prototype-kit/pull/476)
 
-Bug fixes:
+### Bug fixes
 
 - [Fix loading variables from .env](https://github.com/alphagov/govuk-prototype-kit/pull/583)
 - [Update link from question page template to design system](https://github.com/alphagov/govuk-prototype-kit/pull/575)
 - [Changed block name to bodyEnd to fix scripts in unbranded template](https://github.com/alphagov/govuk-prototype-kit/pull/580)
 
-# 7.0.0
+## 7.0.0
 
-This release adds backwards compatibility, so you can use old prototypes
-made in v6 of the Prototype Kit in v7.
+This release adds backwards compatibility, so you can use old prototypes made in v6 of the Prototype Kit in v7.
 
 [Read the guidance on using backwards compatibility](https://govuk-prototype-kit.herokuapp.com/docs/backwards-compatibility)
 
-New features:
+### New features
+
 - [#568 Update GOV.UK Frontend to 1.2.0](https://github.com/alphagov/govuk-prototype-kit/pull/568)
 - [#563 Add Nunjucks macro example to 'passing data' guidance](https://github.com/alphagov/govuk-prototype-kit/pull/563)
 - [#553 Add backwards compatibility - support for prototypes made in Version 6 of the Prototype Kit](https://github.com/alphagov/govuk-prototype-kit/pull/553)
@@ -750,7 +759,7 @@ New features:
 - [#557 Remove unused readdir dependency](https://github.com/alphagov/govuk-prototype-kit/pull/557)
 - [#557 Fix a broken link in an error message](https://github.com/alphagov/govuk-prototype-kit/pull/557)
 
-Bug fixes:
+### Bug fixes
 - [#566 Improve error handling](https://github.com/alphagov/govuk-prototype-kit/pull/566)
 - [#556 Update branching example](https://github.com/alphagov/govuk-prototype-kit/pull/556)
 - [#536 Import missing component macros](https://github.com/alphagov/govuk_prototype_kit/pull/536)
@@ -758,9 +767,9 @@ Bug fixes:
 - [#540 Fix grid css classes on check-your-answers page](https://github.com/alphagov/govuk-prototype-kit/pull/540)
 - [#562 Change the syntax used to specify node engine versions to fix a bug that prevented prototypes from being deployed to a CloudFoundry instance, by ](https://github.com/alphagov/govuk-prototype-kit/pull/562)
 
-# 7.0.0-beta.10
+## 7.0.0-beta.10
 
-Breaking changes:
+### Breaking changes
 
 - [#512 Update to GOV.UK Frontend](https://github.com/alphagov/govuk_prototype_kit/pull/512)
 
@@ -777,7 +786,7 @@ $(document).ready(function () {
 })
 ```
 
-New features:
+### New features
 
 - [#501 Add default session data](https://github.com/alphagov/govuk_prototype_kit/pull/501)
 - [#502 Add Cookies and Privacy policy text](https://github.com/alphagov/govuk_prototype_kit/pull/502)
@@ -786,7 +795,8 @@ New features:
 - [#523 Track app usage](https://github.com/alphagov/govuk_prototype_kit/pull/523)
 - [#525 Add design system message to home page](https://github.com/alphagov/govuk_prototype_kit/pull/525)
 
-Bug fixes:
+### Bug fixes
+
 - [#530 Update elements class to frontend on examples page](https://github.com/alphagov/govuk_prototype_kit/pull/530)
 - [#491 Remove redundant Google Analytics](https://github.com/alphagov/govuk_prototype_kit/pull/491)
 - [#524 Make "Prototype Kit" casing consistent](https://github.com/alphagov/govuk_prototype_kit/pull/524)
@@ -794,9 +804,10 @@ Bug fixes:
 
 To see the previous private beta releases see the archived [private beta repository](https://github.com/alphagov/govuk-prototype-kit-private-beta/blob/master/CHANGELOG.md#700-beta9).
 
-# 6.3.0
+## 6.3.0
+
+### New features
 
-New features:
 - [#430 Recommend Atom over Sublime text](https://github.com/alphagov/govuk_prototype_kit/pull/430)
 - [#415 Update to govuk-elements-sass v3.1.1](https://github.com/alphagov/govuk_prototype_kit/pull/415)
 - [#422 fix(package): update govuk_template_jinja to version 0.22.3](https://github.com/alphagov/govuk_prototype_kit/pull/422)
@@ -806,24 +817,25 @@ New features:
 - [#410 Copyright should be Crown Copyright](https://github.com/alphagov/govuk_prototype_kit/pull/410)
 - [#407 Support deprecated check-your-answers table styles](https://github.com/alphagov/govuk_prototype_kit/pull/407)
 
-Bug fixes:
+### Bug fixes
 
 - [#431 Remove the Heroku deploy provider from Travis](https://github.com/alphagov/govuk_prototype_kit/pull/431)
 - [#405 Upgrade node.js version for Heroku](https://github.com/alphagov/govuk_prototype_kit/pull/405)
 
-# 6.2.0
+## 6.2.0
 
-New features:
+### New features
 - [#365 Improvements to Check your answers page](https://github.com/alphagov/govuk_prototype_kit/pull/365)
 - [#398 Bump govuk_template_jinja to 0.22.1](https://github.com/alphagov/govuk_prototype_kit/pull/398)
 
-Bug fixes:
+### Bug fixes
 - [#405 Upgrade node.js version for Heroku](https://github.com/alphagov/govuk_prototype_kit/pull/405)
 - [#399 Fix JS error in Safari’s Private Browsing mode](https://github.com/alphagov/govuk_prototype_kit/pull/399)
 
-# 6.1.0
+## 6.1.0
+
+### New features
 
-New features:
 - [#386 Add GOV.UK Notify client library to kit](https://github.com/alphagov/govuk_prototype_kit/pull/386)
 - [#383 Add .env file to support storing private data](https://github.com/alphagov/govuk_prototype_kit/pull/383)
 - [#347 Add ie8 elements support](https://github.com/alphagov/govuk_prototype_kit/pull/347)
@@ -831,9 +843,10 @@ New features:
 - [#373 add page_scripts block](https://github.com/alphagov/govuk_prototype_kit/pull/373)
 - [#371 Update README](https://github.com/alphagov/govuk_prototype_kit/pull/371)
 
-# 6.0.0
+## 6.0.0
+
+### New features
 
-New features:
 - [#369 Add template pages for content and questions](https://github.com/alphagov/govuk_prototype_kit/pull/369)
 - [#340 Auto data session 4](https://github.com/alphagov/govuk_prototype_kit/pull/340)
 - [#367 Added config to turn off browser sync](https://github.com/alphagov/govuk_prototype_kit/pull/367)
@@ -843,17 +856,20 @@ New features:
 - [#360 Bump govuk_frontend_toolkit to 5.1.1](https://github.com/alphagov/govuk_prototype_kit/pull/360)
 - [#352 bump gulp-sass to increase node-sass dependency](https://github.com/alphagov/govuk_prototype_kit/pull/352)
 
-Bug fixes:
+### Bug fixes
+
 - [#356 fix download link](https://github.com/alphagov/govuk_prototype_kit/pull/356)
 - [#357 fix docs links](https://github.com/alphagov/govuk_prototype_kit/pull/357)
 - [#354 Allow search indexing in promo mode](https://github.com/alphagov/govuk_prototype_kit/pull/354)
 
-# 5.1.0
+## 5.1.0
+
+### New features
 
-New features:
 - [#335 Add ability to override service name on a page](https://github.com/alphagov/govuk_prototype_kit/pull/335)
 
-Bug fixes:
+### Bug fixes
+
 - [#350 Prevent asking users to authenticate twice](https://github.com/alphagov/govuk_prototype_kit/pull/350)
 - [#344 Removing links to route.js / updating example in branching.html](https://github.com/alphagov/govuk_prototype_kit/pull/344)
 - [#343 Remove the title attribute from the cookie message](https://github.com/alphagov/govuk_prototype_kit/pull/343)
@@ -861,15 +877,15 @@ Bug fixes:
 - [#337 Add Git step to Heroku guide](https://github.com/alphagov/govuk_prototype_kit/pull/337)
 - [#336 Use app.locals instead of app.use](https://github.com/alphagov/govuk_prototype_kit/pull/336)
 
-# 5.0.1
+## 5.0.1
 
 - [#330 Update GOV.UK toolkit and StandardJS to latest](https://github.com/alphagov/govuk_prototype_kit/pull/330)
 - [#328 Update GOV.UK template to latest](https://github.com/alphagov/govuk_prototype_kit/pull/328)
 - [#324 Fix the example question page’s back link](https://github.com/alphagov/govuk_prototype_kit/pull/324)
 
-# 5.0.0
+## 5.0.0
 
-Breaking changes:
+### Breaking changes
 
 - [#284 Use Gulp instead of Grunt](https://github.com/alphagov/govuk_prototype_kit/pull/284)
 
@@ -878,9 +894,10 @@ It is recommended to [install Gulp globally](https://github.com/gulpjs/gulp/blob
 
 `npm install --global gulp-cli`
 
-All changes:
+### All changes
 
 The short version:
+
 - [#311 Update govuk-elements-sass to 2.2.0](https://github.com/alphagov/govuk_prototype_kit/pull/311)
 - [#308 Change node version from 4 to 6](https://github.com/alphagov/govuk_prototype_kit/pull/308)
 - [#299 Basic sanity check test suite](https://github.com/alphagov/govuk_prototype_kit/pull/299)
@@ -888,18 +905,19 @@ The short version:
 - Fix broken links for the documentation app
 
 The extended version:
+
 This release includes custom radio buttons and checkbox styles from govuk-elements-sass v2.2.0.
 The version of Node that the prototype kit uses has been updated, we recommend using LTS (version 6 or above).
 Travis will now run tests against each pull request to ensure that the app runs (by checking the server and build tasks).
 The latest-release branch can be used to update the prototype kit. Instructions for [updating your version of the prototype kit via the latest-release branch can be found here](https://govuk-prototype-kit.herokuapp.com/docs/updating-the-kit#updating-via-the-command-line-advanced-).
 
-# 4.0.0
+## 4.0.0
 
-Breaking changes:
+### Breaking changes
 
 - [#244](https://github.com/alphagov/govuk_prototype_kit/pull/244) Migrate documentation into a separate application
 
-All changes:
+### All changes
 
 - Bump all GOV.UK assets to their latest versions
 - Remove duplicate GOV.UK assets copied to the app
@@ -912,15 +930,15 @@ All changes:
 - [#197](https://github.com/alphagov/govuk_prototype_kit/pull/197) Add the ability to store user data per session
 
 
-# 3.0.0
+## 3.0.0
 
 BrowserSync support, so you don't need to refresh the browser to see your changes. Nunjucks filters file has been added, so you can [add your own filters](https://mozilla.github.io/nunjucks/api.html#custom-filters) to your project, check the examples page in the kit for more details.
 
-Breaking changes:
+### Breaking changes
 
 - #188 Force SSL on production
 
-All changes:
+### All changes
 
 - #213 Remove references to "latest version" of Node
 - #212 Remove the mustache version of govuk template
@@ -956,7 +974,7 @@ All changes:
 - #152 Amend travis yml
 
 
-# 2.1.0
+## 2.1.0
 
 New documentation to make it easier to install and run from scratch - tested with users and everything! The kit will now copy new files from assets to public (previously only updates to existing files were copied). It's easier to run multiple prototypes at once - the kit will automatically find a free port to run on.
 
@@ -968,11 +986,11 @@ New documentation to make it easier to install and run from scratch - tested wit
 - Add tmuxp config files to gitignore (#132)
 - Improve 'port in use' errors, find a new port (#130)
 
-# 2.0.0
+## 2.0.0
 
 This release switches templating language from [Mustache](http://mustache.github.io/) to [Nunjucks](https://mozilla.github.io/nunjucks/).
 
-This is a breaking change.
+### Breaking change
 
 To convert your old prototype pages for use with this version, [follow this guide](https://github.com/alphagov/govuk_prototype_kit/blob/master/docs/updating-the-kit.md).
 
@@ -994,6 +1012,6 @@ To convert your old prototype pages for use with this version, [follow this guid
 - Add jQuery to the kit, so it's available on all pages by default (#18)
 - Add page without header and footer (#12)
 
-# 1.0.0
+## 1.0.0
 
 Initial release of prototype kit