README.md in motion-firebase-3.3.0 vs README.md in motion-firebase-4.0.0

@@ -8,16 +8,34 @@
 For a Ruby (MRI) Firebase wrapper, check out <https://github.com/derailed/bigbertha>.
 
 Installation
 ============
 
-The **motion-firebase** gem ships with "freeze dried" copies of the Firebase
-framework.  This way we can guarantee that the version of **motion-firebase** is
-*definitely* compatible with the version of Firebase that is included.  As new
-features get announced, we update the gem.
+As of version 4.0, **motion-firebase** no longer ships with the Firebase
+framework.  It became impossible to ship with support for GeoFire *and*
+Firebase, and CocoaPods is the preferred way to handle the dependencies between
+these two frameworks.  Plus, removing the frameworks from the gem makes it that
+much smaller!
 
-Also, it means that installation is easy!  When you compile your RubyMotion
-project, the Firebase SDK gets included automatically.
+motion-firebase 4.0
+========
+
+Removed the "freeze-dried" Firebase.framework.  Use CocoaPods to install the
+framework (see the demo app's [Rakefile](Rakefile) and [Gemfile](Gemfile) to see
+an example cocoapods setup).  Or, TL;DR:
+
+###### Gemfile
+
+    gem 'cocoapods'
+    gem 'motion-cocoapods'
+
+###### Rakefile
+
+    app.pods do
+      pod 'Firebase'
+      pod 'GeoFire'
+    end
+
 
 motion-firebase 3.0
 ========
 
 Lots of changes in this version: [3.0.md](3.0.md)