Add missing semicolon in webgl_gpu_particle_system

examples/webgl_gpu_particle_system.html

@@ -80,7 +80,7 @@
 				horizontalSpeed: 1.5,
 				verticalSpeed: 1.33,
 				timeScale: 1
-			}
+			};
 
 			gui.add(options, "velocityRandomness", 0, 3);
 			gui.add(options, "positionRandomness", 0, 3);