title: How do I stop tracking a file and keep its current state in Git?
body: <p>I have a configuration file for my python program where users have to insert an API key. </p>
  
  <p>I am tracking the file with Git and I committed the file as just a template form.</p>
  
  <p>I need to use the file myself with my private API key so how do I tell Git that the template version is the "final" version and to not track any further changes?</p>