title: How to mock a post commit hook in github, for a repo that is not owned
body: <p>Id like to enable a post commit hook on a repository that I do not own.  Is this possible via forking + tracking ?  Or is there another way to enable watching commits of another repository so that your own repository can enable custom post-commit hooks ?  </p>
  
  <p>For context: In this case - I'm an active developer on a project which I don't have admin rights to, which is open source and on github, so I'd like to have some custom post-commit hooks for myself without having to force the admin to install them.  </p>
  
  <p>I assume that git tracking is the idiomatic way to go about this - but Im not sure how github works when it comes to cascading commit events downwards.</p>