Update README.md

Author: siutin

README.md

@@ -2,6 +2,8 @@
 
 This plugin allows you to register resources/pages with nested namespaces in ActiveAdmin. 
 
+Here is the example project: https://github.com/siutin/activeadmin-nested-namespaces
+
 ## Installation
 
 Add this line to your application's Gemfile:
@@ -25,7 +27,6 @@ if defined?(ActiveAdmin::NestedNamespace)
 end
 ```
 
-
 # Get Started
 
 Register resources to 2 different namespaces:  
@@ -137,4 +138,4 @@ And in your routes.rb:
 
 ## License
 
-[MIT](https://opensource.org/licenses/MIT)
+[MIT](https://opensource.org/licenses/MIT)