**Backport:** https://codeberg.org/forgejo/docs/pulls/1153
I noticed `CODEOWNERS` documentation was missing, so I took a look at the source code and put something together.
Fixes#420
Co-authored-by: Oto Šťáva <oto.stava@fghj.cz>
Reviewed-on: https://codeberg.org/forgejo/docs/pulls/1154
Reviewed-by: Earl Warren <earl-warren@noreply.codeberg.org>
Co-authored-by: forgejo-website <forgejo-website@noreply.codeberg.org>
Co-committed-by: forgejo-website <forgejo-website@noreply.codeberg.org>