message: Update description of "Tag release and merge back" workflow
diff: -# This workflow runs after a release of the action.
  -# It merges any changes from the release back into the
  -# main branch. Typically, this is just a single commit
  -# that updates the changelog.
  +# This workflow runs after a release of the action. For v2 releases, it merges any changes from the
  +# release back into the main branch. Typically, this is just a single commit that updates the
  +# changelog. For v2 and v1 releases, it then tags the merge commit on the release branch that
  +# represents the new release.
  name: Tag release and merge back
  on:
  