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.
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.
Is there an existing document that showcases most or all Markdown syntax, perhaps written for just such a test?