added user-friendly URLs to documentation

README.rdoc

@@ -195,6 +195,20 @@ However, the <tt>paginate</tt> helper doesn't automatically handle your Array ob
 <tt>Kaminari::paginate_array</tt> method converts your Array object into a paginatable Array that accepts <tt>page</tt> method.
   Kaminari.paginate_array(my_array_object).page(params[:page]).per(10)
 
+== Creating friendly URLs and caching
+
+Because of the `page` parameter and Rails 3 routing, you can easily generate SEO and user-friendly URLs. For any resource you'd like to paginate, just add the following to your `routes.rb`:
+
+    resources :my_resources do
+      get 'page/:page', :action => :index, :on => :collection
+    end
+
+This will create URLs like `/my_resources/page/33` instead of `/my_resources?page=33`. This is now a friendly URL, but it also has other added benefits...
+
+Because the `page` parameter is now a URL segment, we can leverage on Rails page caching[http://guides.rubyonrails.org/caching_with_rails.html#page-caching]!
+
+NOTE: In this example, I've pointed the route to my `:index` action. You may have defined a custom pagination action in your controller - you should point `:action => :your_custom_action` instead.
+
 
 == For more information