README.md in omniauth-shibboleth-1.0.4 vs README.md in omniauth-shibboleth-1.0.5

@@ -18,18 +18,16 @@
 
 ## Getting Started
 
 ### Installation
 
-    % gem install omniauth
     % gem install omniauth-shibboleth
 
 ### Setup Gemfile
 
     % cd rails-app
     % vi Gemfile
-    gem 'omniauth'
     gem 'omniauth-shibboleth'
 
 ### Setup Shibboleth Strategy
 
 To use OmniAuth Shibboleth strategy as a middleware in your rails application, add the following file to your rails application initializer directory.
@@ -72,12 +70,16 @@
       AuthType shibboleth
       ShibRequestSetting requireSession 1
       require valid-user
     </Location>
 
-Shibboleth strategy just checks the existence of Shib-Session-ID or Shib-Application-ID. 
+Shibboleth strategy just checks the existence of Shib-Session-ID or Shib-Application-ID.
 
+If you want to use omniauth-shibboleth without Apache or IIS, you can try **rack-saml**. It supports a part of Shibboleth SP functions.
+
+https://github.com/toyokazu/rack-saml
+
 Shibboleth strategy assumes the attributes are provided via environment variables because the use of ShibUseHeaders option may cause some problems. The details are discussed in the following page:
 
 https://wiki.shibboleth.net/confluence/display/SHIB2/NativeSPSpoofChecking
 
 To provide Shibboleth attributes via environment variables, we can not use proxy_balancer base approach. Currently we can realize it by using Phusion Passenger as an application container. An example construction pattern is shown in presence_checker application (https://github.com/toyokazu/presence_checker/).
@@ -89,10 +91,10 @@
     % vi config/initializer/omniauth.rb
     Rails.application.config.middleware.use OmniAuth::Builder do
       provider :shibboleth, { :dev_mode => true }
     end
 
-## License
+## License (MIT License)
 
 Copyright (C) 2011 by Toyokazu Akiyama.
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal