Linking 2 computers to 2 GitHub accounts
If you have only one GitHub account and work with a single computer you will find plenty of information in the internet on how to link your machine to your account. Also, if you want to set up a secure SSH protocol to connect your computer to GitHub so that you don’t have to supply your username or password at each visit, a good starting point is the Connecting to GitHub with SSH documentation on the GitHub help pages or take a look at some of the many blogs, e.