See [docs](https://help.github.com/en/github/creating-cloning-and-archiving-repositories/creating-a-template-repository) for info on how to do that. A template repository makes it easier for others to build projects on top of the template while also keeping the 'forks' clean. ([see this](https://help.github.com/en/github/creating-cloning-and-archiving-repositories/creating-a-repository-from-a-template))
