title: Need a sufficiently long & complex Markdown document for performance testing
body: <p>I'm looking for a long and complex Markdown document that I can use to test performance of different markdown implementations -- as an alternative to iterative benchmarking of a simple document.</p>
  
  <p>I thought I might be able to browse around Stack Overflow and find something, but by and large everything I find is pretty simply written; and so far I'm not finding anything useful on Google.</p>
  
  <p>Is there an existing document that showcases most or all Markdown syntax, perhaps written for just such a test?</p>