fix link

docs/modules/core/pages/scene/traverse_scenegraph.adoc

@@ -1,11 +1,7 @@
 = Traverse the SceneGraph
-:author:
-:revnumber:
-:revdate: 2016/03/17 20:48
+:revnumber: 2.0
+:revdate: 2020/07/25
 :keywords: spatial, node, mesh, geometry, scenegraph
-:relfileprefix: ../../
-:imagesdir: ../..
-ifdef::env-github,env-browser[:outfilesuffix: .adoc]
 
 
 You can run a search across the whole scene graph and search for individual Spatials (`Node` and `Geometry`) by custom criteria, such as the Spatial's name, or the Spatial's class, or the Spatial's user data, or Spatial's Controls. You do this when you want modify  the found nodes (move them, call a method, etc) but you don't have a local variable for them.