Replace page with readme get a more descriptive link keyword in GLTFLoader doc

docs/examples/loaders/GLTFLoader.html

@@ -138,7 +138,7 @@
 		[page:DRACOLoader dracoLoader] — Instance of THREE.DRACOLoader, to be used for decoding assets compressed with the KHR_draco_mesh_compression extension.
 		</div>
 		<div>
-		Refer to this [link:https://github.com/mrdoob/three.js/tree/dev/examples/js/libs/draco#readme page] for the details of Draco and its decoder.
+		Refer to this [link:https://github.com/mrdoob/three.js/tree/dev/examples/js/libs/draco#readme readme] for the details of Draco and its decoder.
 		</div>
 
 		<h3>[method:null parse]( [param:ArrayBuffer data], [param:String path], [param:Function onLoad], [param:Function onError] )</h3>