fix cross ref

docs/modules/tutorials/pages/beginner/hello_asset.adoc

@@ -416,13 +416,11 @@ Again, you should see the Ninja+wall+teapot standing in a town.
 
 Now you know how to populate the scenegraph with static shapes and models, and how to build scenes. You have learned how to load assets using the `assetManager` and you have seen that the paths start relative to your project directory. Another important thing you have learned is to convert models to .j3o format for the executable JARs etc.
 
-Let's add some action to the scene and continue with the xref:hello_main_event_loop.adoc[Update Loop]!
-
 '''
 
 *See also:*
 
 *  xref:ROOT:jme3/external/blender.adoc[The definitive Blender import tutorial]
 *  xref:ROOT:jme3/intermediate/multi-media_asset_pipeline.adoc[Asset pipeline introduction]
-*  If you want to learn how to load sounds, see xref:ROOT:jme3/beginner/hello_audio.adoc[Hello Audio]
-*  If you want to learn more about loading textures and materials, see xref:ROOT:jme3/beginner/hello_material.adoc[Hello Material]
+*  If you want to learn how to load sounds, see xref:hello_audio.adoc[Hello Audio]
+*  If you want to learn more about loading textures and materials, see xref:hello_material.adoc[Hello Material]