jsdoc fix

Author: photonstorm

src/particles/arcade/ArcadeParticles.js

@@ -1 +1,12 @@
-Phaser.Particles.Arcade = {};
+/**
+* @author       Richard Davey <rich@photonstorm.com>
+* @copyright    2014 Photon Storm Ltd.
+* @license      {@link https://github.com/photonstorm/phaser/blob/master/license.txt|MIT License}
+*/
+
+/**
+* Arcade Particles is a Particle System integrated with Arcade Physics.
+*
+* @class Phaser.Particles.Arcade
+*/
+Phaser.Particles.Arcade = {};