title: Add a custom button to a Django application's admin page
body: <p>I have an application in Django with a routine which would be available only to the admin. What I want to do is add a button to perform the routine in this application's section of the admin app.</p>
  
  <p>Am I supposed to make a template for it, and if that's the case, how do I add a html template for an app in the admin. Or maybe there's a command to simply add a button?</p>