feat(docs): add resource type

[landru29]

I have the need to document all my angularjs resources.
to do so :

/**

• @ngdoc resource

• @name MyModule.resource:MyResource

• @module MyModule

• @description

• Hello world !
  */
  angular.module('MyModule').service('MyResource', function($resource) {
  'use strict';
  return $resource('hello/world/:action', { }, {

  /**
   * @ngdoc function
   * @name create
   * @methodOf MyModule.resource:MyResource
   * @restMethod POST
   * @description
   *
   * @return {object} Promise
   */
  create: {
      method: 'POST',
      isArray: false,
      params:{action:''}
  }
  

  });
  });

[m7r]

Thats a nice idea. Could you write a usage guide for the wiki?