title: Git ignore particular files
body: <p>I've been playing around with it for a while and I like it very much.
  Let me describe my case.</p>
  
  <p>I have two computers where I have my repositories and a remote repository.</p>
  
  <p>in my files I have one configuration file which differs on both computers. so when I do pull on my computers I don't need that config file to be pulled, but everything else. How can I achieve that?</p>
  
  <p>I've read about .gitignore files but I can't figure out how they work or are they the thing that I need in my case.</p>