title: Change Composer git source for a package
body: <p>I pull in a package using Composer with this composer.json:</p>
  
  <pre><code>{
      "require": {
          "torophp/torophp": "dev-master",
      },
  }
  </code></pre>
  
  <p>When I run <code>composer install</code> it seems to pull this package from GitHub directly.</p>
  
  <p>I have created a fork of that repo on github with some small changes. Is there a way I can get composer to pull my version on GitHub instead of the original?</p>