Connecting a git repository created in atom to github

I’m not sure why I’m so flummoxed by this. What I’m trying to do should be simple, if it’s possible. I have a folder on my computer with a single index.html file in it. I then create a git repository FROM ATOM that contains the files in this folder. I then simply want to link (not the proper word I know) this folder/repository to an existing repository on my github account. When I go to the github tab in Atom and click to do this, the first drop-down box never populates with anything, it just keeps waiting. I’ve already authorized atom through my github account and got a token, but can’t seem to find where that’s even required.

No ideas on what may be causing this problem?