README.md in cassette-rack-0.7.0 vs README.md in cassette-rack-0.8.0

@@ -2,9 +2,11 @@
 
 Operate of the VCR cassette on Rack.
 
 ![caracal](https://dl.dropboxusercontent.com/u/14690051/images/logo/caracal.png)
 
+Caracal is cassette rack alchemist.
+
 ## Installation
 
 Add this line to your application's Gemfile:
 
 ```