title: How to use webpack to concat html pieces?
body: <p>For example, I have a main entry html file:  </p>
  
  <pre><code>&lt;div&gt;
     &lt;!-- I'd like to include a html partial here --&gt;
  &lt;/div&gt;
  </code></pre>
  
  <p>And I have a partial html</p>
  
  <pre><code>&lt;span&gt;I'm a partial html piece&lt;/span&gt;
  </code></pre>
  
  <p>I hope that I can use webpack to generate a final html like below:</p>
  
  <pre><code>&lt;div&gt;
    &lt;span&gt;I'm a partial html piece&lt;/span&gt;
  &lt;/div&gt;
  </code></pre>
  
  <p>Is it possible to do this with webpack plugin/loaders?</p>