Update README with info about signed cookies

README.md

@@ -17,12 +17,39 @@ gem 'redis-actionpack'
 
 ## Usage
 
-If you are using redis-store with Rails, consider using the [redis-rails gem](https://github.com/redis-store/redis-rails) instead. For standalone usage:
+If you are using redis-store with Rails, head on over to the
+[redis-rails README](https://github.com/redis-store/redis-rails#session-storage) to
+learn how to integrate this gem into your Rails application.
+
+For standalone usage:
 
 ```ruby
-ActionController::Base.cache_store = ActionDispatch::Session::RedisStore.new
+ActionController::Base.session_store = :redis_store,
+  servers: %w(redis://localhost:6379/0/session),
+  expire_after: 90.minutes,
+  key: '_my_application_session',
+  threadsafe: false,
+  signed: true,
+  secure: true
 ```
 
+A brief run-down of these options...
+
+- **servers** is an Array of Redis server URLs that we will attempt to find
+  data from.
+- **expire_after** is the default TTL of session keys. This is also set
+  as the expiry time of any cookies generated by the session store.
+- **key** is the name of the cookie on the client side
+- **threadsafe** is for applications that run on multiple instances. Set
+  this to `false` if you want to disable the global mutex lock on
+  session data. It's `true` by default, meaning the mutex will be
+  enabled.
+- **signed** uses signed/encrypted cookies to store the local session on
+  a client machine, preventing a malicious user from tampering with its
+  contents.
+- **secure** ensures HTTP cookies are transferred from server to client
+  on a secure (HTTPS) connection
+
 ## Running tests
 
 ```shell
@@ -37,8 +64,8 @@ If you are on **Snow Leopard** you have to run `env ARCHFLAGS="-arch x86_64" bun
 
 ## Status
 
-[![Gem Version](https://badge.fury.io/rb/redis-actionpack.svg)](http://badge.fury.io/rb/redis-actionpack) 
-[![Build Status](https://secure.travis-ci.org/redis-store/redis-actionpack.svg?branch=master)](http://travis-ci.org/redis-store/redis-actionpack?branch=master) 
+[![Gem Version](https://badge.fury.io/rb/redis-actionpack.svg)](http://badge.fury.io/rb/redis-actionpack)
+[![Build Status](https://secure.travis-ci.org/redis-store/redis-actionpack.svg?branch=master)](http://travis-ci.org/redis-store/redis-actionpack?branch=master)
 [![Code Climate](https://codeclimate.com/github/redis-store/redis-actionpack.svg)](https://codeclimate.com/github/redis-store/redis-actionpack)
 
 ## Copyright