title: Can TortoiseGit manage a local repository created by something else?
body: <p>I'm using GitHub for Windows, which keeps the repositories for the projects I copied locally in a special directory.  I also have TortoiseGit installed.</p>
  
  <p>I see the special SCM icons on the project folders.  There was something on one of those projects I wanted to handle with TortoiseGit.  It sort-of worked, but I stopped trying.  Now there is a persistent stop-exclamation icon on that folder, even after going back to the GitHub to do several updates.  I'm guessing that the only way to get rid of it is to make TortoiseGit properly work with GitHub checkouts.</p>
  
  <p>It was until after I messed around that I realized that GitHub and TortoiseGit keep the hash-keys to their repositories to themselves, so cross-access is probably a bad idea....</p>
  
  <p>Any way to make them work together, or at least clean up my icon error.  (It would be nice if I could list my GitHub repos on the "Git" section of Libraries.)</p>