Reading changelog - automate release bodies

[joepio]

Hi there! Thanks for creating and maintaining this.

I recently came across this github action: create-gh-release-action, which parses the CHANGELOG.md file and uses that to create a body for the release.

Might be cool this action supports a similar thing.

Users can also manually set it up using changelog-reader:

      - name: Get Changelog Entry
        id: changelog_reader
        uses: mindsers/changelog-reader-action@v2
        with:
          validation_depth: 10
          version: ${{ steps.tag_name.outputs.current_version }}
          path: ./CHANGELOG.md
      - name: Create/update release
        uses: ncipollo/release-action@v1
        with:
          # This pulls from the "Get Changelog Entry" step above, referencing it's ID to get its outputs object.
          # See this blog post for more info: https://jasonet.co/posts/new-features-of-github-actions/#passing-data-to-future-steps
          tag: ${{ steps.changelog_reader.outputs.version }}
          name: Release ${{ steps.changelog_reader.outputs.version }}
          body: ${{ steps.changelog_reader.outputs.changes }}
          prerelease: ${{ steps.changelog_reader.outputs.status == 'prereleased' }}
          draft: ${{ steps.changelog_reader.outputs.status == 'unreleased' }}
          allowUpdates: true
          token: ${{ secrets.GITHUB_TOKEN }}

But it would be even better if this was natively supported by this action.