Ask HN: How can I enable non-technical team members to edit files on GitHub?

We've got a bunch of configuration files for our app (JSON, YAML, etc) stored in a Google Cloud Storage bucket right now. We'd like to move these into GitHub so that they can be version controlled, tested, audit-logged, etc. in a way that all the devs on the team will find familiar.

However we also need some non-technical or semi-technical members of the team to be able to make updates to these files. Today they do that by just downloading them, making the updates, and re-uploading them. Now I am worried the idea of branches, PRs, merge conflicts, etc. will be a distraction and a drain.

Is there any system which makes this more approachable? We've used Netlify CMS for a similar task in the past but it's not quite right.