Use decorator also for user's asciicasts collection

app/controllers/users_controller.rb

@@ -3,10 +3,12 @@ class UsersController < ApplicationController
 
   def show
     @user = User.find_by_nickname(params[:nickname])
-    @asciicasts = @user.asciicasts.
+    collection = @user.asciicasts.
       order("created_at DESC").
       page(params[:page]).
       per(PER_PAGE)
+
+    @asciicasts = AsciicastDecorator.decorate(collection)
   end
 
   def create