Allow to use markdownlint format of keep-a-changelog version 2.2.0

[Ndpnt]

Hi,

Thanks for this useful GitHub Action to generate changelog.

We need to generate a changelog that respect markdownlint rules.
An update has been made on keep-a-changelog module in version 2.2.0 in this way.
Could you allow to specify the output format as parameter of this GitHub action?

Something like this:

name: Get version changelog
  on:
    ...

  jobs:
    get-changelog:
      steps:
        - uses: actions/checkout@v2
        - name: Get changelog
          id: get-changelog
          uses: @superfaceai/release-changelog-action@v2
          with:
            path-to-changelog: CHANGELOG.md
            version: 1.0.0
            format: markdownlint
        - name: Log changelog
          run: echo ${{ steps.get-changelog.outputs.changelog }}

[MattiSG]

That would be great indeed!

@janhalama FYI, following oscarotero/keep-a-changelog#28, the format is documented here 🙂

[janhalama]

I like your proposal. I will add the format parameter as you suggest with markdownlint and compact (default) options.

[janhalama]

Implemented in #270.

[Ndpnt]

Thanks 🙏

[janhalama]

@Ndpnt, @MattiSG the markdownlint format support has been released in v2.1.1 the v2 tag has been updated to the latest version

[MattiSG]

Amazing, thanks!