1. Go to the "Git Changes" tab in the sidebar.
2. Click the + at the top right of the "Changes" dropdown to stage everything
2.1. Git may crash with a "cannot parse path" error. Just go find what file it's crying about, right-click on it, and tell git to ignore it. I have no idea if that's what you should actually be doing, but it seems to work.
3. Add a commit comment.
4. Click "Commit Staged" and wait for VS to finish chewing on it.
5. Click "Push" at the top right of the sidebar.