I found that it doesn't support all the md grammars in post dialog, but it's quite perfect in the comment dialog. (such as '#' doesn't work in post dialog, It works well in comment dialog.) I always could find something wrong within layout after saving posts then i have to return the post dialog to edit my post again.
So I suggest to add markdown preview when we edit posts.
summerblue
commented
7 years ago 
I found that it doesn't support all the md grammars in post dialog, but it's quite perfect in the comment dialog. (such as '#' doesn't work in post dialog, It works well in comment dialog.) I always could find something wrong within layout after saving posts then i have to return the post dialog to edit my post again. So I suggest to add markdown preview when we edit posts.