Change routes.rb look in getting started [ci skip]

guides/source/getting_started.md

@@ -298,6 +298,7 @@ Rails.application.routes.draw do
 
   # The priority is based upon order of creation:
   # first created -> highest priority.
+  # See how all your routes lay out with "rake routes".
   #
   # You can have the root of your site routed with "root"
   # root 'welcome#index'