title: Heroku - Fatal error when pushing to a git repository
body: <p>I use Git Bash to push my files to a git repository. It was fine when I did this:</p>
  
  <pre><code>heroku login
  git add .
  </code></pre>
  
  <p>but I tried this:</p>
  
  <pre><code>`git push heroku master
  </code></pre>
  
  <p>the following error came up:</p>
  
  <pre><code>fatal: 'heroku' does not appear to be a git repository
  fatal: could not read from remote repository
  
  Please make sure you have correct access rights 
  and the repository exists.
  </code></pre>
  
  <p>I have tried the following commands but they didn't work:</p>
  
  <pre><code>heroku keys:clear
  heroku keys:add
  </code></pre>
  
  <p>I am new to Git and Heroku, any help would be appreciated.</p>