README.md in rails_sso-0.2.1 vs README.md in rails_sso-0.3.0

@@ -1,9 +1,12 @@
 # SSO client Rails Engine
 
+[![Circle CI](https://circleci.com/gh/monterail/rails_sso/tree/master.svg?style=shield&circle-token=237c44548fb2c2597bcd0bc7b1dd99c81329e574)](https://circleci.com/gh/monterail/rails_sso/tree/master)
 [![Dependency Status](https://gemnasium.com/monterail/rails_sso.svg)](https://gemnasium.com/monterail/rails_sso)
 [![Gem Version](https://badge.fury.io/rb/rails_sso.svg)](http://badge.fury.io/rb/rails_sso)
+[![Code Climate](https://codeclimate.com/github/monterail/rails_sso/badges/gpa.svg)](https://codeclimate.com/github/monterail/rails_sso)
+[![Test Coverage](https://codeclimate.com/github/monterail/rails_sso/badges/coverage.svg)](https://codeclimate.com/github/monterail/rails_sso)
 
 ## About
 
 *SOON*
 
@@ -16,15 +19,23 @@
 
 gem 'omniauth-example'
 gem 'rails_sso'
 ```
 
-Configure it:
+Install initializer and mount routes:
 
+```bash
+bin/rails generate rails_sso
+```
+
+Configure initializer:
+
 ```ruby
 # conifg/initializers/sso.rb
 
 RailsSso.configure do |config|
+  # url of entity provider
+  config.provider_url = 'https://example.com'
   # name of oauth2 provider
   config.provider_name = 'example'
   # oauth keys for omniauth-example
   config.provider_key = ENV['PROVIDER_KEY']
   config.provider_secret = ENV['PROVIDER_SECRET']