[Feature request] Pushing files to repos

[asinghvi17]

It would be nice to be able to create or update a file on Github through the API, as GitHub.jl does.

I'd be willing to work on this at some point, but right now I'm a bit swamped.

[christopher-dG]

Sure, that can be done.

For reference:

• "create or update a file" in GitHub contents API
• "create new file in repository" in GitHub repository files API