README.md in celluloid-0.12.3 vs README.md in celluloid-0.12.4.pre

@@ -1,9 +1,10 @@
 ![Celluloid](https://raw.github.com/celluloid/celluloid-logos/master/celluloid/celluloid.png)
 =========
 [![Build Status](https://secure.travis-ci.org/celluloid/celluloid.png?branch=master)](http://travis-ci.org/celluloid/celluloid)
 [![Dependency Status](https://gemnasium.com/celluloid/celluloid.png)](https://gemnasium.com/celluloid/celluloid)
+[![Code Climate](https://codeclimate.com/badge.png)](https://codeclimate.com/github/celluloid/celluloid)
 
 > "I thought of objects being like biological cells and/or individual
 > computers on a network, only able to communicate with messages"
 > _--Alan Kay, creator of Smalltalk, on the meaning of "object oriented programming"_
 
@@ -61,22 +62,33 @@
   if the method has already completed, or otherwise the current method is
   suspended until the value becomes available.
 
 You can also build distributed systems with Celluloid using its
 [sister project DCell](https://github.com/celluloid/dcell). Evented IO similar
-to EventMachine (with a synchronous API) is available through the
-[Celluloid::IO](https://github.com/celluloid/celluloid-io) library.
+to EventMachine (with a synchronous API instead of callback/deferrable soup)
+is available through the [Celluloid::IO](https://github.com/celluloid/celluloid-io)
+library.
 
-[Please see the Celluloid Wiki](https://github.com/celluloid/celluloid/wiki)
-for more detailed documentation and usage notes.
-
 Like Celluloid? [Join the Google Group](http://groups.google.com/group/celluloid-ruby)
 or visit us on IRC at #celluloid on freenode
 
 ### Is It "Production Ready™"?
 
 Yes, many users are now running Celluloid in production by using
-[Sidekiq](https://github.com/mperham/sidekiq)
+[Sidekiq](http://sidekiq.org) and [Adhearsion](http://adhearsion.com/)
+
+Documentation
+-------------
+
+[Please see the Celluloid Wiki](https://github.com/celluloid/celluloid/wiki)
+for more detailed documentation and usage notes.
+
+The following API documentation is also available:
+
+* [YARD API documentation](http://rubydoc.info/gems/celluloid/frames)
+* [Celluloid module (primary API)](http://rubydoc.info/gems/celluloid/Celluloid)
+* [Celluloid class methods](http://rubydoc.info/gems/celluloid/Celluloid/ClassMethods)
+* [All Celluloid classes](http://rubydoc.info/gems/celluloid/index)
 
 Installation
 ------------
 
 Add this line to your application's Gemfile: