how to deploy heroku with an existing a git repository code example

Example 1: heroku git remote

heroku git:remote -a name-of-app

Example 2: push heroku

$ git push heroku master

Example 3: heroku and github on termi

$ heroku git:remote -a thawing-inlet-61413
set git remote heroku to https://git.heroku.com/thawing-inlet-61413.git