Nope, there is none. Not even mentioned on the Readme. Somehow people tend to forget the licensing aspect of Open Source, it’s not just putting your code on display
From the Github docs: "If you publish your source code in a public repository on GitHub, according to the Terms of Service, other users of GitHub.com have the right to view and fork your repository."
So by using GitHub, he has implicitly 'signed over' some rights to other GitHub users.
Nice renders though.