GLTFLoader: update GLTFLoader doc

docs/examples/loaders/GLTFLoader.html

@@ -31,7 +31,7 @@
 			<li>KHR_draco_mesh_compression</li>
 			<li>KHR_materials_pbrSpecularGlossiness</li>
 			<li>KHR_materials_unlit</li>
-			<li>KHR_lights (experimental)</li>
+			<li>KHR_lights_punctual (experimental)</li>
 		</ul>
 
 		<h2>Example</h2>