title: How should characters be escaped in github markdown code blocks
body: <p>It appears that a github fenced code block doesn't accept arbitrary character strings. A block like this:</p>
  
  <pre><code>```haskell
  sinusoid1 = plot_lines_values .~ [[ (x,(am x)) | x &lt;- [0,(0.5)..400]]]
            $ plot_lines_style  . line_color .~ opaque blue
            $ plot_lines_title .~ "am"
            $ def
  ```
  </code></pre>
  
  <p>ends displaying the code truncated a the first &lt; symbol.</p>
  
  <p>A real example of this is here:</p>
  
  <p><a href="https://github.com/timbod7/haskell-chart/wiki/example-1" rel="nofollow">https://github.com/timbod7/haskell-chart/wiki/example-1</a></p>
  
  <p>Do I need to escape certain character strings in github markdown code blocks? How do I do this? </p>