diff --git a/README.md b/README.md
index cff79ad..f56ef19 100644
--- a/README.md
+++ b/README.md
@@ -3,5 +3,10 @@ Lightweight configuration of emacs with basic utilities
 
 ![emacs-base](https://img.fenixzone.net/i/fsJdDCq.png?raw=true "emacs-base")
 
+### Markdown Mode
+- Require installed markdown in distro GNU+Linux, example:
+
+  `apt-get install markdown` or `pacman -S markdown`
+
 ### License
 - [GLPv3](LICENSE)