diff --git a/README.md b/README.md
index 61a3631..0127d4b 100644
--- a/README.md
+++ b/README.md
@@ -2,9 +2,15 @@
 [@collection-abstraction/set](https://collection-abstraction.github.io/set)
 ==
 
-Python's set data structure for JavaScript. Parent is
+Python's set data structure for JavaScript.
+See [docs](https://collection-abstraction.github.io/set/index.html).
+Parent is
 [js-data-structures](https://github.com/make-github-pseudonymous-again/js-data-structures).
 
+> :warning: Depending on your environment, the code may require
+> `regeneratorRuntime` to be defined, for instance by importing
+> [regenerator-runtime/runtime](https://www.npmjs.com/package/regenerator-runtime).
+
 ```js
 set('abc').issubset( 'abcd' ) ; // true
 ```
diff --git a/doc/css/style.css b/doc/css/style.css
index a951e42..ed56934 100644
--- a/doc/css/style.css
+++ b/doc/css/style.css
@@ -1,7 +1,3 @@
-/*header > a[data-ice="testLink"] {*/
-	/*display: none;*/
-/*}*/
-
 h1,
 h2,
 .navigation,
@@ -50,7 +46,6 @@ footer
 	background-color: #ccc;
 }
 
-
 span[data-ice="signature"] > span {
 	/*font-weight: bold;*/
 	font-style: italic;
diff --git a/doc/manual/installation.md b/doc/manual/installation.md
index 1d22cb6..7825192 100644
--- a/doc/manual/installation.md
+++ b/doc/manual/installation.md
@@ -1,14 +1,22 @@
 # Installation
+
 Can be managed using
-[jspm](http://jspm.io)
-or [npm](https://github.com/npm/npm).
+[yarn](https://yarnpkg.com/en/docs),
+[npm](https://docs.npmjs.com),
+or [jspm](https://jspm.org/docs).
 
-### jspm
+
+### yarn
 ```terminal
-jspm install npm:@collection-abstraction/set
+yarn add @collection-abstraction/set
 ```
 
 ### npm
 ```terminal
 npm install @collection-abstraction/set --save
 ```
+
+### jspm
+```terminal
+jspm install npm:@collection-abstraction/set
+```
diff --git a/doc/manual/usage.md b/doc/manual/usage.md
index 1330eee..698421b 100644
--- a/doc/manual/usage.md
+++ b/doc/manual/usage.md
@@ -1,15 +1,19 @@
 # Usage
-The code needs a ES2015+ polyfill to work, for example
-[regenerator-runtime/runtime](https://babeljs.io/docs/usage/polyfill).
+
+> :warning: Depending on your environment, the code may require
+> `regeneratorRuntime` to be defined, for instance by importing
+> [regenerator-runtime/runtime](https://www.npmjs.com/package/regenerator-runtime).
+
+First, require the polyfill at the entry point of your application
 ```js
-await import( 'regenerator-runtime/runtime.js' ) ;
+await import('regenerator-runtime/runtime.js');
 // or
-import 'regenerator-runtime/runtime.js' ;
+import 'regenerator-runtime/runtime.js';
 ```
 
-Then
+Then, import the library where needed
 ```js
-const number = await import( '@collection-abstraction/set' ) ;
+const {set} = await import('@collection-abstraction/set');
 // or
-import number from '@collection-abstraction/set' ;
+import {set} from '@collection-abstraction/set';
 ```
diff --git a/doc/scripts/header.js b/doc/scripts/header.js
index d4537ec..0488334 100644
--- a/doc/scripts/header.js
+++ b/doc/scripts/header.js
@@ -7,10 +7,10 @@ const domReady = function (callback) {
 	}
 };
 
-domReady(function () {
+domReady(() => {
 	const projectname = document.createElement('a');
 	projectname.classList.add('project-name');
-	projectname.text = 'collection-abstraction/set';
+	projectname.text = '@collection-abstraction/set';
 	projectname.href = './index.html';
 
 	const header = document.querySelector('header');
@@ -24,7 +24,7 @@ domReady(function () {
 	const input = document.querySelector('.search-input');
 
 	// Active search box when focus on searchBox.
-	input.addEventListener('focus', function () {
+	input.addEventListener('focus', () => {
 		searchBox.classList.add('active');
 	});
 });