title: Missing src folder with YARN or NPM package install
body: <p>Creating a simple package.json</p>
  <pre><code>yarn init
  
  {
    &quot;name&quot;: &quot;freedraw&quot;,
    &quot;version&quot;: &quot;1.0.0&quot;,
    &quot;main&quot;: &quot;index.js&quot;,
    &quot;license&quot;: &quot;MIT&quot;
  }
  </code></pre>
  <p>Adding leaflet-freedraw dependency:</p>
  <pre><code>yarn add leaflet-freedraw
  
  {
    &quot;name&quot;: &quot;freedraw&quot;,
    &quot;version&quot;: &quot;1.0.0&quot;,
    &quot;main&quot;: &quot;index.js&quot;,
    &quot;license&quot;: &quot;MIT&quot;,
    &quot;dependencies&quot;: {
      &quot;leaflet-freedraw&quot;: &quot;^2.13.0&quot;
    }
  }
  </code></pre>
  <p>The installed node module only contains this:</p>
  <pre><code>/dist
  package.json
  LICENSE
  README.md
  </code></pre>
  <p>There sould also be the source folder installed:</p>
  <pre><code>/src
  </code></pre>
  <p>The devs from freedraw say the /src folder should also be there.</p>
  <p>I'm using a lot of packages and I get the /src folder everywhere except here. Same happens with <code>npm</code>.</p>