Make the routes rake task more discoverable but documenting it in the routing...

Make the routes rake task more discoverable but documenting it in the routing documentation. Closes #10478 [dancroak]

git-svn-id: http://svn-commit.rubyonrails.org/rails/trunk@8380 5ecf4fe2-1ee6-0310-87b1-e25e094e27de

actionpack/lib/action_controller/routing.rb

@@ -268,6 +268,10 @@ module ActionController
   #    #...
   #  end
   #
+  # == View a list of all your routes
+  #
+  # Run <tt>rake routes</tt>.
+  #
   module Routing
     SEPARATORS = %w( / . ? )