title: Changing subfolder name in git project without losing file history?
body: <p>FYI, I'm pretty new to git, using mostly gitgui.</p>
  
  <p>When I change the name of an already tracked folder containing already tracked files in my project, git sees all the files in the folder as new untracked files. How do I make git understand that I only changed the name of the folder, so that I don't "lose" the history of the files contained in that folder?</p>