With GitHub Learning Lab, you’ll learn through issues opened by a bot in a GitHub repository. After you finish tasks, the bot will comment on your work and even review your pull requests like a project collaborator would.
This is something really cool I'm hoping to see soon. Many people had troubles in the past starting with Github, and there's still some people that didn't understand completely the power behind Github Pages. This will help tons of new users to get introduced to the Github power.
Easy steps, easy to learn.
Nothing. Github is awesome.