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\end{lstlisting}  We first specify the remote repository, "origin", followed by the name of the branch name "master".  Branches are parallel versions of the code, but we will not cover them in depth in this tutorial (Box 3). 2).  As we have seen, we can already accomplish a lot when only using one branch.  Pushing to GitHub also has the added benefit of backing up your code in case anything were to happen to your computer.