Update BufferGeometry doc

docs/api/core/BufferGeometry.html

@@ -195,7 +195,7 @@
 
 		<h3>[page:EventDispatcher EventDispatcher] methods are available on this class.</h3>
 
-		<h3>[method:null addAttribute]( [param:String name], [param:BufferAttribute attribute] )</h3>
+		<h3>[method:BufferGeometry addAttribute]( [param:String name], [param:BufferAttribute attribute] )</h3>
 		<p>
 		Adds an attribute to this geometry. Use this rather than the attributes property,
 		because an internal hashmap of [page:.attributes] is maintained to speed up iterating over