title: Git remove subtree or change directory of subtree
body: <p>I am trying to synchronize with updates for my subtree by doing </p>
  
  <p><code>git pull -s subtree react master</code></p>
  
  <p>but the whole repo is copied into wrong folder not the one I mention while adding a new repository as a subtree.</p>
  
  <p>How can I remove subtree or change directory of subtree?</p>