Fix example code.
Fix example code.

Closes #227

deizel/crud,pwerken/cakephp-crud,simkimsia/crud,FriendsOfCake/crud,FriendsOfCake/crud-json-api,bravo-kernel/crud,Spriz/crud,ankr/crud,bcrowe/crud,johanmeiring/crud,davidyell/crud,dakota/crud,ojengwa/crud