Feature Request: ability to specify repo and commit directly to GitHub rather than download

[greydnls]

Is your feature request related to a problem? Please describe. It would be great if you could commit the file to GitHub, rather than downloading it. If you specify the repo, authenticate a user against GitHub to get a token (assuming the user has proper permissions), I think it's possible to do it.

[octokatherine]

I'm open to this idea!