markdown preview crushed
Revert "markdown preview crushed"

This reverts commit 8143f76f3a3def16f424179e0088fea105b889e2.
Revert "Revert "markdown preview crushed""

This reverts commit 5c000490e86035ddc0092784d96a3d663ee43148.
Still didn't work preview, i thing it's about many pictures and symbols