README.md in validates_cpf-3.0.0 vs README.md in validates_cpf-3.1.0

@@ -1,10 +1,11 @@
-# ValidatesCPF 
+# ValidatesCPF
 
 [![Gem Version](https://badge.fury.io/rb/validates_cpf.png)](http://badge.fury.io/rb/validates_cpf) [![Build Status](https://secure.travis-ci.org/plribeiro3000/validates_cpf.png?branch=master)](http://travis-ci.org/plribeiro3000/validates_cpf) [![Dependency Status](https://gemnasium.com/plribeiro3000/validates_cpf.png)](https://gemnasium.com/plribeiro3000/validates_cpf) [![Coverage Status](https://coveralls.io/repos/plribeiro3000/validates_cpf/badge.png?branch=master)](https://coveralls.io/r/plribeiro3000/validates_cpf)  [![Code Climate](https://codeclimate.com/github/plribeiro3000/validates_cpf.png)](https://codeclimate.com/github/plribeiro3000/validates_cpf)
 
-Validates cpf and test it in a simple way. Depends on ruby `>= 2.2`. For older ruby versions use the version `2` series.
+Validates cpf and test it in a simple way.
+Supports ruby 2.2+ and rails 3+. For older ruby versions use the version `2`.
 
 ## Installation
 
 Add this line to your application's Gemfile:
 
@@ -39,11 +40,11 @@
 ## Testing
 
 Require the matcher:
 
 ```ruby
-require 'validates_cpf/require_a_valid_matcher'
+require 'validates_cpf/require_a_valid_cpf_matcher'
 ```
 
 Use in your tests:
 
 ```ruby
@@ -55,6 +56,6 @@
 
 1. Fork it
 2. Create your feature branch (`git checkout -b my-new-feature`)
 3. Commit your changes (`git commit -am 'Added some feature'`)
 4. Push to the branch (`git push origin my-new-feature`)
-5. Create new Pull Request
\ No newline at end of file
+5. Create new Pull Request