Design credits line, including editor, for articles

[rachelandrew]

We'd like to add a specific credit for the editor of articles on our sites. I think this should be a line at the bottom, in the way that we credit the image source. For example at the bottom of this post: https://web.dev/web-platform-01-2023/#beta-browser-releases

I'm wondering if both of these things could actual be part of the YAML, so an optional editor and image credit and link?