title: How to push a git ignored folder to a subtree branch?
body: <p>I have a yeoman angular app and by default the dist folder came ignored. So when I try this: <code>git subtree push --prefix dist origin gh-pages</code> it fails because it is ignored.
  I don't want to push the dist folder to the master branch, I only want to push it to the gh-pages branch.</p>
  
  <p>How can I achieve this?</p>