updated README.md about ELPA outdated-ness

Author: Siddharth Sharma

README.md

@@ -5,8 +5,7 @@ Provides Emacs font-lock, indentation, and navigation for the
 
 ## Installation
 
-If you use [package.el](http://bit.ly/pkg-el23), you can install with
-`M-x package-install clojure-mode`. Otherwise you can do a manual
+Unfortunately, the version on ELPA is outdated as of now. You can do a manual
 install by downloading `clojure-mode.el` and placing it in the
 `~/.emacs.d/` directory, creating it if it doesn't exist. Then add
 this to the file `~/.emacs.d/init.el`: