title: RTL in Markdown
body: <p>Is there any existing addon spec for markdown that includes support for RTL languages?  </p>
  
  <p>What I'm hoping for is something like </p>
  
  <pre><code>This paragraph is left to right
  &lt;- This paragraph is right to left
  </code></pre>
  
  <p>Or something...  I can tweak my parser to handle this but I want to make sure it doesn't exist already.</p>