[README] Add link to new guides

README.md

@@ -106,6 +106,7 @@ RABL is intended to require little to no configuration to get working. This is t
 
 ```ruby
 # config/initializers/rabl_init.rb
+require 'rabl'
 Rabl.configure do |config|
   # Commented as these are defaults
   # config.cache_all_output = false
@@ -508,10 +509,12 @@ and many tutorials and guides detailed below.
 
 Links to resources for advanced usage:
 
+ * Production Speed Optimizations: https://github.com/nesquena/rabl/wiki/Rabl-In-Production
  * Grape Integration: https://github.com/nesquena/rabl/wiki/Using-Rabl-with-Grape
  * Rendering JSON for a tree structure using RABL: https://github.com/nesquena/rabl/issues/70
  * Layouts (erb, haml and rabl) in RABL: https://github.com/nesquena/rabl/wiki/Using-Layouts
  * Backbone or [Ember.js](http://www.emberjs.com) Integration: https://github.com/nesquena/rabl/wiki/Backbone-Integration
+ * RABL with Rails Engines: https://github.com/nesquena/rabl/wiki/Setup-rabl-with-rails-engines
 
 Please add your own usages and let me know so we can add them here! Also be sure to check out
 the [RABL Wiki](https://github.com/nesquena/rabl/wiki) for other usages.