title: How to make user replicate my code, by making a new category?
body: <p>I made an application for car maintenance,  where it has category for each maintenance part.  Code can be found at:</p>
  
  <p><a href="https://github.com/abdelrahman84/CarMaintenanceSchedule/tree/master" rel="nofollow noreferrer">https://github.com/abdelrahman84/CarMaintenanceSchedule/tree/master</a></p>
  
  <p>How do I make user make a new category of his own? </p>