title: How to wrap part of the text with spans using jQuery?
body: <p>Here is what I am trying to do</p>
  
  <pre><code>Fox&lt;span&gt;Rox&lt;/span&gt;
  </code></pre>
  
  <p>before that</p>
  
  <pre><code>FoxRox
  </code></pre>
  
  <p>How do I wrap spans around <code>Rox</code>?</p>