README.md in kf5-0.3.2 vs README.md in kf5-0.3.3

@@ -11,10 +11,16 @@
 
 ```ruby
 gem 'kf5'
 ```
 
+Make sure you have:
+
+```ruby
+gem 'jquery-rails'
+```
+
 And then execute:
 
     bundle
 
 Or install it yourself as:
@@ -22,11 +28,14 @@
     gem install kf5
 
 For rails, create config `config/initializers/kf5.rb`
 ```ruby
 KF5.configure do |config|
+  config.domain = "your.domain"
+
+  # do not set key to disable SSO 
   config.key = "your key of KF5 service"
-  config.domain = "your domain of KF5 service"
+
   # 1: login for 30 days, 0: login for 30 minutes
   # config.remember_me = 1
 
   # if you use devise, it will fetch following information from current_user if exsit
   # default is :username, this is identification with email format