title: Make private repo contribution history public
body: <p>I would like to show a client my contribution history towards a project, without making the repo public. Is there a way to do this through github (eg: not taking screenshots of everything).</p>
  
  <p>Ideally they could see at least the number of contributions towards the project; it would be great if they could also see the graph features (punch card, timeline, etc.).</p>
  
  <p>Is this possible?</p>