Update PlaneGeometry.html

docs/api/extras/geometries/PlaneGeometry.html

@@ -16,7 +16,7 @@
 
 		<h2>Example</h2>
 		
-		<code>var geometry = new THREE.PlaneGeometry( 5, 20 );
+		<code>var geometry = new THREE.PlaneGeometry( 5, 20, 32 );
 		var material = new THREE.MeshBasicMaterial( {color: 0xffff00, side: THREE.DoubleSide} );
 		var plane = new THREE.Mesh( geometry, material );
 		scene.add( plane );