title: Refer to a folder in git
body: <p>I need to add a folder in a git repository and that folder is located out of the main (root) folder. I want git to treat it as the other normal folders in the repo: like if it was located in the main folder. </p>
  
  <p>Of course, I can just copy it there and will have to do that over and over again. But I'd like to refer to it somehow, find a more elegant solution.</p>
  
  <p>Is there any way to do that?</p>