Docblock updates for PostsTagFixture.
Docblock updates for PostsTagFixture.

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