Specifically, it explains how to install Git, Ruby and Jenkins on Windows (as opposed to a Mac or Linux environment). Download and install Git.

That's all there is to it, and Git will now compare your copy of the repository to that hosted on GitHub and will download any changes. You now know how to clone and pull updates from any GitHub ...

In addition to the GitHub for Windows application itself, it includes a self-contained version of git, the bash command-line shell, and the posh-git extension for PowerShell.