Now that you have a local Git repository, we'll look at how we can take that code and push it up to a third-party service called GitHub. GitHub is going to let us host our Git repositories remotely, so if our machine ever crashes we can get our code back, and it also has great collaboration tools, so we can open-source a project, letting others use our code, or we can keep it private so only people we choose to collaborate with can see the source code.
Now in order to actually communicate between our machine and GitHub, we'll have to create something called an SSH key. SSH keys were designed to securely communicate between two computers. In this case, it will be our machine and the GitHub server. This will let us confirm that GitHub is who they say they are and it will let GitHub confirm that we indeed have access to the code we're...