title: github how to include files from master in new git branch gh-pages
body: <p>github has this feature where you can publish "Project Pages" if you create a new branch gh-pages in your project. For full description see <a href="http://pages.github.com/" rel="noreferrer">http://pages.github.com/</a></p>
  
  <p>My project is just html/images, so I just want to serve the master branch.</p>
  
  <p>so how do I create a new branch called gh-pages that is just exact copy of master?
  some kind of link operation?</p>
  
  <p>Thanks</p>