Setting up a github.com repository in Visual Studio Code

I couldn't find a concise step-by-step tutorial to integrate Visual Studio Code with github.com and I'm struggling with this.

This is what I did:

• I installed Visual Studio Code (VSC)
• Within VSC I installed two extensions: GitHub 0.30.3 and GitHub Pull Requests 0.13.0
• I tried to configure the github.com remote site in VSC, all I could find here is that there's a githubPullRequests.hosts entry, but no place to put a user/password.

Can the complete setup happen inside VSC or there's something that needs to be done with a git command? How to make VSC aware of a repository in github.com ?