README.md in redis-activesupport-with-cas-0.0.2 vs README.md in redis-activesupport-with-cas-0.0.4

@@ -15,10 +15,19 @@
 
 ```ruby
 ActiveSupport::Cache.lookup_store :redis_store_with_cas # { ... optional configuration ... }
 ```
 
+### Usage with `IdentityCache`
+
+Inside your environments configuration add following line:
+
+```ruby
+config.cache_store = :redis_store_with_cas, { :host => 'localhost', :port => 6379, :db => 0, :namespace => "data_cache", :expires_in => 15.minutes, :race_condition_ttl => 1}
+IdentityCache.cache_backend = ActiveSupport::Cache.lookup_store(*Rails.configuration.cache_store)
+```
+
 ## Running tests
 
 ```shell
 gem install bundler
 git clone https://git.alwin-it.de/ruby-redis/redis-activesupport-with-cas.git
@@ -27,6 +36,6 @@
 bundle exec rake
 ```
 
 ## Copyright
 
-2017 Rajko Albrecht, released under the MIT license
\ No newline at end of file
+2017 Rajko Albrecht, released under the MIT license