README.md in dentaku-0.2.10 vs README.md in dentaku-0.2.11

@@ -1,8 +1,12 @@
 Dentaku
 =======
 
+[![Gem Version](https://badge.fury.io/rb/dentaku.png)](http://badge.fury.io/rb/dentaku)
+[![Build Status](https://travis-ci.org/rubysolo/dentaku.png?branch=master)](https://travis-ci.org/rubysolo/dentaku)
+[![Code Climate](https://codeclimate.com/github/rubysolo/dentaku.png)](https://codeclimate.com/github/rubysolo/dentaku)
+
 http://github.com/rubysolo/dentaku
 
 DESCRIPTION
 -----------
 
@@ -70,10 +74,10 @@
 
 SUPPORTED OPERATORS AND FUNCTIONS
 ---------------------------------
 
 Math: `+ - * /`  
-Logic: `< > <= >= <> != = AND OR`  
+Logic: `< > <= >= <> != = AND OR NOT`  
 Functions: `IF ROUND`
 
 THANKS
 ------