Update BufferGeometry.html

docs/api/core/BufferGeometry.html

@@ -68,7 +68,7 @@
 
 		<h3>.[page:boolean hasTangents]</h3>
 		<div>
-		todo
+		True if BufferGeometry has tangents. Set in [page:BufferGeometry BufferGeometry.computeTangents].
 		</div> 
 
 		<h2>Methods</h2>