fix link

docs/modules/ROOT/pages/jme3/scenegraph_for_dummies.adoc

@@ -20,7 +20,7 @@ ifdef::env-github,env-browser[:outfilesuffix: .adoc]
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-*  You can open this presentation in link:https://wiki.jmonkeyengine.org/docs/tutorials/scenegraph[Fullscreen Mode].
+*  You can open this presentation in https://wiki.jmonkeyengine.org/tutorials/scenegraph[Fullscreen Mode].
 *  When using link:http://www.apple.com/safari/[Safari] as a browser the presentation is animated.
 
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