add package to load-path only when needed

lisp/init-markdown.el

@@ -1,5 +1,8 @@
 ;; -*- coding: utf-8; lexical-binding: t; -*-
 
+(require 'init-package)
+(add-pkg-in-pkg-dir "markdown-mode")
+
 (autoload 'markdown-mode "markdown-mode"
   "Major mode for editing Markdown files" t)
 (add-to-list 'auto-mode-alist