Markdown config in Emacs init.el

init.el

;;; Markdown
(defun turn-on-outline-minor-mode ()
  (outline-minor-mode 1))

(when (require 'markdown-mode nil 'noerror)
  (setq auto-mode-alist
        (cons '("\\.md" . markdown-mode) auto-mode-alist))
  (setq auto-mode-alist
        (cons '("\\.markdown" . markdown-mode) auto-mode-alist))
  (setq markdown-command "/usr/local/bin/Markdown.pl")
  (add-hook 'markdown-mode-hook
            (lambda () (setq comment-auto-fill-only-comments nil)))
  (add-hook 'markdown-mode-hook 'turn-on-outline-minor-mode)
  (add-hook 'markdown-mode-hook 'turn-on-visual-line-mode)  
  )
;;;