I have looked through many web pages on the new Git integration in VS 2013 and they do not deal with adding an existing solution to Github. In fact I can\'t find much on us
It's a few less clicks in VS2017, and if the local repo is ahead of the Git clone, click Source control from the pop-up project menu:
This brings up the Team Explorer Changes dialog:
Type in a description- here it's "Stack Overflow Example Commit".
Make a choice of the three options on offer, all of which are explained here.