title: highlight syntax in pre tags with highlight.js
body: <p>there is a light powerful javascript code for syntax highlight here:</p>
  
  <p><a href="http://softwaremaniacs.org/soft/highlight/en/" rel="noreferrer">http://softwaremaniacs.org/soft/highlight/en/</a></p>
  
  <p>but this code just work with <code>&lt;pre&gt;&lt;code&gt;&lt;/code&gt;&lt;/pre&gt;</code> blocks, which is my problem, i like to use just <code>&lt;pre&gt;&lt;/pre&gt;</code> because Chrome and Safari don't include line breaks for <code>&lt;pre&gt;&lt;code&gt;&lt;/code&gt;&lt;/pre&gt;</code> when copy and past the code, but for <code>&lt;pre&gt;&lt;/pre&gt;</code> it's work.</p>
  
  <p>there's a user guide too, but honestly i can't understand what must i do to highlight just pre tags. user guide is here:</p>
  
  <p><a href="http://softwaremaniacs.org/soft/highlight/en/description/" rel="noreferrer">http://softwaremaniacs.org/soft/highlight/en/description/</a></p>