fixed broken link.

src/docs/asciidoc/jme3/advanced/post-processor_water.adoc

@@ -9,7 +9,8 @@
 ifdef::env-github,env-browser[:outfilesuffix: .adoc]
 
 
-The awesome SeaMonkey WaterFilter is highly configurable. It can render any type of water and also simulates the underwater part of the effect, including light effects called caustics. The effect is based on link:http://www.gamedev.net/page/reference/index.html/_//feature/fprogramming/rendering-water-as-a-post-process-effect-r2642[Wojciech Toman’s Rendering Water as a Post-process Effect] published on gamedev.net. Here's a video:
+The awesome SeaMonkey WaterFilter is highly configurable. It can render any type of water and also simulates the underwater part of the effect, including light effects called caustics. The effect is based on link:https://www.gamedev.net/articles/programming/graphics/rendering-water-as-a-post-process-effect-r2642/[Wojciech Toman’s Rendering Water as a Post-process Effect] 
+published on gamedev.net. Here's a video:
 
 
 image::jme3/advanced/water-post.png[water-post.png,width="",height="",align="center",link=https://youtu.be/AWlUzgRN3Pc]