title: How to update my procfile and push it to Heroku to replace the current one?
body: <p>Just pushed my first Django app to Heroku, but my Dynos is blank.  It doesn't appear to be detecting my procfile.  I want to re-do my procfile and push it to my app to replace the current one.  Once I make a new procfile in my text editor, how do I push it to my app?  </p>