README.md in radiosonde-0.0.2 vs README.md in radiosonde-0.0.3

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@@ -2,9 +2,11 @@
 
 Radiosonde is a tool to manage CloudWatch Alarm.
 
 It defines the state of CloudWatch Alarm using DSL, and updates CloudWatch Alarm according to DSL.
 
+[![Gem Version](https://badge.fury.io/rb/radiosonde.svg)](http://badge.fury.io/rb/radiosonde)
+
 ## Installation
 
 Add this line to your application's Gemfile:
 
     gem 'radiosonde'