Markdown stuff is progressing faster than anticipated. It’ll probably be live fairly soon.
We deviate from GFM a bit and add our own extensions. In reality, our Markdown will feel a lot more like that on Discord (but with far more features) rather than the “pure” MD spec (such as using __text__ for underline, or not allowing “>text” to become a blockquote, rather requiring it to be “> text”)
I’ve also made it so you can resize external image embeds (the ones you currently would embed like !url.com/image.png!), by simply specifying size in alt text, like so:
Valid sizes are: tiny (64px), small (128px), medium (256px) and large (512px). Entering anything else will not constrain image size and will instead display full image.