title: How can I connect a git repository to heroku app
body: <p>I'm trying to connect my heroku app to git repository.And also I can't able to push an existing repository with heroku app.While I'm trying to push with</p>
  
  <pre><code>git push heroku master
  </code></pre>
  
  <p>I found </p>
  
  <pre><code>fatal: 'heroku' does not appear to be a git repository
  fatal: Could not read from remote repository.
  </code></pre>
  
  <p>How can I solve this?</p>