set link to install topic

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

@@ -5,7 +5,7 @@
 :keywords: beginner, intro, documentation, init, simpleapplication, basegame
 
 
-*Prerequisites:* This tutorial assumes that you have xref:ROOT:documentation.adoc[downloaded the jMonkeyEngine SDK].
+*Prerequisites:* This tutorial assumes that you have xref:ROOT:documentation.adoc#install[downloaded the jMonkeyEngine SDK].
 
 In this tutorial series, we assume that you use the jMonkeyEngine <<sdk#,SDK>>. As an intermediate or advanced Java developer, you will quickly see that, in general, you can develop jMonkeyEngine code in any integrated development environment (NetBeans IDE, Eclipse, IntelliJ) or even from the <<jme3/simpleapplication_from_the_commandline#,command line>>.