title: How to specify npm dependency as github subfolder url?
body: <p>My git repository:</p>
  
  <pre><code>README.md
  packages
    common
      package.json
    main
      package.json
  </code></pre>
  
  <p>How to specify <code>common</code> dependency in <code>main</code> package.json as github subfolder url?</p>
  
  <p>This does not work <code>"common": "git://github.com/&lt;user&gt;/&lt;project&gt;/packages/common.git"</code></p>