A forking rebase wokflow with GitHub is a common Git workflow, whether you're trying to work on open source or collaborating on work projects or your own.
Knowing how to properly fork and generate pull requests is essential.
It is easy to make mistakes when you're learning the process. In an attempt to gather this information for myself and others, this short tutorial for creating a fork, doing your work, issuing a pull request, and merging that pull request back into the original project.
On the GitHub page and click the "Fork" button. Once you've done that, you can use your favorite git client to clone your repo or just head straight to the command line (my method of choice):