title: draft-js-export-html not includes video when export
body: <p>Currently, I'm using draft js editor, add plugin <a href="https://github.com/draft-js-plugins/draft-js-plugins/tree/master/draft-js-video-plugin" rel="nofollow noreferrer">draft-js-video-plugin</a> to insert video into editor and use <a href="https://www.npmjs.com/package/draft-js-export-html" rel="nofollow noreferrer">draft-js-export-html</a> to export html but the htmk result not includes video tag or anythings else. </p>
  
  <p>Console log <code>stateToHTML(this.state.editorState.getCurrentContent())</code></p>
  
  <pre><code>&lt;p&gt;&lt;br&gt;&lt;/p&gt;
  &lt;figure&gt;&amp;nbsp;&lt;/figure&gt;
  &lt;p&gt;&lt;br&gt;&lt;/p&gt;
  </code></pre>
  
  <p>I found same issue with export image <a href="https://github.com/sstur/draft-js-utils/issues/59" rel="nofollow noreferrer">here</a> and they've resolved but not for video.
  I've read <a href="https://github.com/sstur/draft-js-utils/blob/master/packages/draft-js-export-html/src/stateToHTML.js" rel="nofollow noreferrer">their source code</a> on github and seem now they only support text, link and image.</p>
  
  <p><a href="https://i.stack.imgur.com/fD47U.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/fD47U.png" alt="enter image description here"></a></p>
  
  <p>So how can I get result HTML includes video from draft js? Please help me, thank you guys.</p>