Markdown text markup and styling

MapRoulette supports a variant of Markdown for marking up or styling text. Markdown can be used in most places where long-form text can be entered, such as challenge descriptions, challenge instructions, task comments, etc.

The variant supported by MapRoulette is inspired by Github-flavor Markdown (often abbreviated as GFM). Most -- though not all -- GFM is supported by MapRoulette. One notable exception: whereas GFM allows some raw HTML, MapRoulette does not.

Below is screenshot showing some commonly used bits of Markdown on the left, with a preview on the right of how that Markdown will appear to users:

Finally, here is a Cheat Sheet that may also be useful. Again, not all GFM is supported by MapRoulette, but most of it is.