README.md in undo-storage-redis-0.0.4 vs README.md in undo-storage-redis-0.1.0

@@ -3,11 +3,11 @@
 [![Build Status](https://travis-ci.org/AlexParamonov/undo-storage-redis.png?branch=master)](https://travis-ci.org/AlexParamonov/undo-storage-redis)
 [![Gemnasium Build Status](https://gemnasium.com/AlexParamonov/undo-storage-redis.png)](http://gemnasium.com/AlexParamonov/undo-storage-redis)
 [![Coverage Status](https://coveralls.io/repos/AlexParamonov/undo-storage-redis/badge.png?branch=master)](https://coveralls.io/r/AlexParamonov/undo-storage-redis?branch=master)
 [![Gem Version](https://badge.fury.io/rb/undo-storage-redis.png)](http://badge.fury.io/rb/undo-storage-redis)
 
-Redis storage adapter for Undo gem.
+Redis storage adapter for [Undo gem](https://github.com/AlexParamonov/undo).
 
 Contents
 ---------
 1. Installation
 1. Requirements
@@ -32,9 +32,10 @@
     $ gem install undo-storage-redis
 
 Requirements
 ------------
 1. Ruby 1.9 or above
+1. Undo gem
 
 Contacts
 -------------
 Have questions or recommendations? Contact me via `[e-mail]`  
 Found a bug or have enhancement request? You are welcome at [Github bugtracker](https://github.com/AlexParamonov/undo-storage-redis/issues)