https://git.heroku.com code example
Example 1: git push to heroku
$ git push heroku master
Example 2: heroku and github on termi
$ git push heroku master
Initializing repository, done.
updating 'refs/heads/master'
...
$ git push heroku master
$ git push heroku master
Initializing repository, done.
updating 'refs/heads/master'
...