Thanks for the feedback all!
Quick question for Justice: Why did you set it up as an online rather than desktop hosted app?
a couple of very minor things struck me as odd (if I've completely misunderstood things there's no need to explain it all !):
Either the syntax page is for a different markdown library (with added features) or the library I use to 'convert' the code has a few issues. I don't think they're common so the easiest solution is to remove them from the syntax page
You're right in your expectations tomos.