title: Automating Jekyll/Github Pages builds based on time
body: <p>I am working on a project where I list only posts with current date(today).
  It would be great to have Github(or some other tool) rebuild the site every day at midnight 00:00.</p>
  
  <p>Can anyone please tell me how this can be done via Github or any other tools? Travis CI maybe? Any tutorials or examples would be much appreciated as i am very new to this.   </p>