title: Updating forked GitHub repo to match original's latest code and commits
body: <p>I forked a GitHub project several days ago and from its issues, I can see that the master branch has had some modifications since. </p>
  
  <p>When I <code>cd</code> to my location directory of this project and use <code>git pull</code>, it says, "Already up-to-date". Why? </p>
  
  <p>How do I update my fork to include the commits from the original repo?</p>