title: Problem with living web page - I want to replace the <pre> tags with <div> tags on living document, in browser
body: <p>There is this very nice article about threading in python.
  <a href="http://www.laurentluce.com/posts/python-threads-synchronization-locks-rlocks-semaphores-conditions-events-and-queues/" rel="nofollow noreferrer">http://www.laurentluce.com/posts/python-threads-synchronization-locks-rlocks-semaphores-conditions-events-and-queues/</a></p>
  
  <p>article is awesome, but that is off-topic.</p>
  
  <p>When you scroll down, you can see, that some paragraphs are cut, and invisible (beginning around Lock section header). When you inspect the source, you see that its caused by <code>&lt;pre&gt;</code> tags wrapping several sections.
  Is there any way to replace all <code>&lt;pre&gt;</code> tags to, lets say <code>&lt;div&gt;</code> tags on living document?
  Maybe plugin to chrome/Mozilla/opera - whatever. I don't want to manually replace them one by one in inspection tool</p>