Release github-action to the github marketplace
Please release the gh-acion to the gh-market place. This would prevent people from relying on third-party actions simply because they did not know an official black gh-action existed.
This feature request was created because of similar feature requests of @tburrows13, @sam-hoffman in #1751.
I thought we had done this. I'll look into it and make it so. If anyone can link documentation or tips on how to do this, that would be helpful. Never plumbed this up.
@cooperlees I made some small changes which I think are necessary in order to release this gh-action to the marketplace (see #1909). Unfortunately, the tests are not succesfull. If the repository has a action.yml file there should be a release to marketplace option when drafting a release. This, however, uses the main README.md. I could not yet find a way to point to a different smaller README.md (for example inside the actions folder).
So I think we're up to drafting a new release to publish this to the Marketplace according to: https://docs.github.com/en/free-pro-team@latest/actions/creating-actions/publishing-actions-in-github-marketplace
I'll try do this when we do next release.
I just took a brief look into it (I wasn't actually going to go through with it but wanted to do a quick "can we and are we ready to do it" check) and this is the first blocker:

Also personally I'd to see PR GH-1940 landed before publishing the action, but that's more based off my intuition than really anything concrete.
@ichard26 Since https://github.com/psf/black/pull/1940 has been merged I think we can now publish the action in the marketplace?
@ichard26 +1 please release it :)
Hi @ichard26 and @cooperlees !
It would be nice to have your official GH Action in the Marketplace. I was a bit confused when I did not find it there, but this issue explained the situation.
The PSF organisation has not accepted the GitHub Marketplace Developer Agreement and honestly I'm not very inclined to ask them since it'd add this intusive banner that's impossible to remove. It makes sense when the whole repository is for just the GH Action, but this repository is also the official codebase for almost everything else.
