Use asymmetric headers in markdown

.emacs

@@ -547,6 +547,8 @@
 ;;;;;; Markdown
 
 (use-package markdown-mode
+  :config
+  (setq markdown-asymmetric-header t)
   :custom-face
   (markdown-header-face-1 ((t (:inherit 'outline-1))))
   (markdown-header-face-2 ((t (:inherit 'outline-2))))