To view all the keyboard shortcuts on GitHub, simply press the question mark key on any GitHub.com page and you’ll see the following image:
Pressing question mark key on any page will show you the shortcuts available, whether they are global (for any page) or for a particular page (e.g. Issues).
And as you’ve figured out by now, the Show All link will show all shortcuts, regardless whether they will work for the page you are currently on, hence why there’s so much whitespace in the image above.
I wanted to share this tip now, so you don’t have to wait for me to discover your favorite shortcut. I’ll go over these more over the upcoming months