increased size of PointLightHelper in helpers example

examples/webgl_helpers.html

@@ -43,7 +43,7 @@
 				light.position.set( 200, 100, 150 );
 				scene.add( light );
 
-				scene.add( new THREE.PointLightHelper( light, 5 ) );
+				scene.add( new THREE.PointLightHelper( light, 15 ) );
 
 				var gridHelper = new THREE.GridHelper( 400, 40, 0x0000ff, 0x808080 );
 				gridHelper.position.y = - 150;