Have Markdown formatting on the forum

It would be great to be able to use markdown when making posts on this forum, just like on stackoverflow.

The current formatting options are pretty trash, and there's no convenient way to format code inline. The insert code snippet is fine, but I can't format code using `backticks` like on stackoverflow.

I can't do #Headings, - [x] checkboxes, or anything like that.

IIRC, StackOverflow is using CommonMark. 

Being able to use Markdown on this site would be a great bonus and would make it a lot easier to make posts, and also would reduce the horror of people posting code in plaintext without formatting and indentation and expecting us to read and understand it.