README.md in rydux-0.9.0 vs README.md in rydux-0.9.1

@@ -1,5 +1,7 @@
+[![Gem Version](https://badge.fury.io/rb/rydux.svg)](https://badge.fury.io/rb/rydux)
+
 # Rydux
 
 A ruby gem that brings the functionality of Redux to your backend.
 
 ## Installation
@@ -61,11 +63,11 @@
       end
 
       # Every instance that subscribes to the store will
       # get this state_changed method called whenever the state
       # in the store changes. Do whatever you want with your state here.
-      def state_changed(state)
+      def state_changed(state, last_dispatch_type)
         # ...
       end
     end
   ```
 5. To update the store with new data, you can `dispatch` actions, like so:
@@ -98,10 +100,10 @@
   def initialize
     Store.subscribe(self)
     @users_name = Store.state.user.name
   end
 
-  def state_changed(state)
+  def state_changed(state, last_dispatch_type)
     @users_name = state.user.name
   end
 
   def greet_user
     puts "Hello, #{@users_name}"