I have a static doc site on Github with a Markdown source. I often want to work on it without a laptop and my workflow currently is quite annoying:

I start writing new content in a note app on iOS or copy over existing content to the app, edit it and then when I get to a laptop, merge it manually in a text editor.

My ideal workflow would use an iOS app that lets me check out a Github repo, do the Markdown editing and then push my changes.

I don't want to use the Github web client, because I'm worried about losing unsaved changes plus the UX is not great on mobile.

Does anybody have a good suggestion?