Merge pull request phaserjs#4215 from snowbillr/update-group-creator-and-factory-param-type

update type param for group factory and creator methods

Author: photonstorm

src/gameobjects/group/GroupCreator.js

@@ -15,7 +15,7 @@ var Group = require('./Group');
  * @method Phaser.GameObjects.GameObjectCreator#group
  * @since 3.0.0
  *
- * @param {GroupConfig} config - The configuration object this Game Object will use to create itself.
+ * @param {GroupConfig|GroupCreateConfig} config - The configuration object this Game Object will use to create itself.
  *
  * @return {Phaser.GameObjects.Group} The Game Object that was created.
  */

src/gameobjects/group/GroupFactory.js

@@ -16,7 +16,7 @@ var GameObjectFactory = require('../GameObjectFactory');
  * @since 3.0.0
  *
  * @param {(Phaser.GameObjects.GameObject[]|GroupConfig|GroupConfig[])} [children] - Game Objects to add to this Group; or the `config` argument.
- * @param {GroupConfig} [config] - A Group Configuration object.
+ * @param {GroupConfig|GroupCreateConfig} [config] - A Group Configuration object.
  *
  * @return {Phaser.GameObjects.Group} The Game Object that was created.
  */