Update water.adoc

Added some links to test cases.

src/docs/asciidoc/jme3/advanced/water.adoc

@@ -14,10 +14,12 @@ Here is some background info for JME3's basic water implementation:
 // *  link:http://www.jmonkeyengine.com/forum/index.php?topic=14740.0[http://www.jmonkeyengine.com/forum/index.php?topic=14740.0]
 *  link:http://www.bonzaisoftware.com/water_tut.html[http://www.bonzaisoftware.com/water_tut.html]
 // *  link:http://www.gametutorials.com/Articles/RealisticWater.pdf[http://www.gametutorials.com/Articles/RealisticWater.pdf]
-
-
 // image::http://www.jmonkeyengine.com/wp-content/uploads/2010/10/simplewaterdemo.jpg[simplewaterdemo.jpg,width="277",height="180",align="center"]
 
+See also:
+
+*  link:https://github.com/jMonkeyEngine/jmonkeyengine/blob/445f7ed010199d30c484fe75bacef4b87f2eb38e/jme3-examples/src/main/java/jme3test/water/TestSceneWater.java[TestSceneWater.java]
+*  link:https://github.com/jMonkeyEngine/jmonkeyengine/blob/445f7ed010199d30c484fe75bacef4b87f2eb38e/jme3-examples/src/main/java/jme3test/water/TestSimpleWater.java[TestSimpleWater.java]
 
 
 == SimpleWaterProcessor