Implement Sandbox

config/routes.rb

@@ -1,5 +1,10 @@
 Rails.application.routes.draw do
 
+  if Rails.env.development? || Rails.env.staging?
+    get '/sandbox' => 'sandbox#index'
+    get '/sandbox/*template' => 'sandbox#show'
+  end
+
   devise_for :users, controllers: {
                        registrations: 'users/registrations',
                        sessions: 'users/sessions',