title: simpleMDE set value not parsing properly
body: <p>I'm using <a href="https://github.com/sparksuite/simplemde-markdown-editor" rel="nofollow noreferrer">simple markdown editor</a> this in my form like</p>
  
  <pre><code>&lt;textarea id="editor-board"&gt;
  &lt;script&gt;
  var simplemde = new SimpleMDE({ element: $("#editor-area")[0] });
  
  simplemde.value("# How are
  **This is bold** This is normal
  _This is italic_ This is normal
  ```
  commands goes here
  demo commands
  sudo apt update
  ```");
  </code></pre>
  
  <p>But this is not even loading plugin in textarea.</p>
  
  <p>Wherease, on setting value to be <code>value('this is simple text');</code> works fine.</p>
  
  <p><strong>How to set the markdown syntax in the editor?</strong></p>