title: Squash all my commits into one for GitHub pull request
body: <p>I made a pull request on GitHub. Now the owner of the repository is saying to squash all the commits into one.</p>
  
  <p>When I type <code>git rebase -i</code> Notepad opens with the following content:</p>
  
  <pre><code>noop
  
  # Rebase 0b13622..0b13622 onto 0b13622
  #
  # Commands:
  #  p, pick = use commit
  #  r, reword = use commit, but edit the commit message
  #  e, edit = use commit, but stop for amending
  #  s, squash = use commit, but meld into previous commit
  #  f, fixup = like "squash", but discard this commit's log message
  #  x, exec = run command (the rest of the line) using shell
  #
  # These lines can be re-ordered; they are executed from top to bottom.
  #
  # If you remove a line here THAT COMMIT WILL BE LOST.
  #
  # However, if you remove everything, the rebase will be aborted.
  #
  # Note that empty commits are commented out
  </code></pre>
  
  <p>I searched on Google but I do not understand how to do this.</p>