title: How to organise git repos when building on a seed project
body: <p>I am building a site based on an seed project (MEAN.io) which I cloned from github. How do I separate these files from my own files. As this seed gives a wide skeleton of files, my own files are distributed across the project. I would like to be able to pull updates from the seed, but not mix it with the files I am adding.</p>
  
  <p>I know I can add the seed as a git submodule, but how do I keep my files that I add in this directory away from the seed repo?</p>
  
  <p>Cheers</p>