Fix broken link

src/docs/asciidoc/jme3/beginner/hello_collision.adoc

@@ -22,7 +22,7 @@ image::jme3/beginner/beginner-scene.png[beginner-scene.png,with="360",height="28
 
 == Sample Code
 
-If you don't have it yet, link:http://jmonkeyengine.googlecode.com/svn/trunk/engine/town.zip[download the town.zip] sample scene.
+If you don't have it yet, link:https://github.com/jMonkeyEngine/wiki/raw/master/src/docs/resources/Scenes/Town/town.zip[download the town.zip] sample scene.
 
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