Fixed link to project repo on github

src/docs/asciidoc/jme3/contributions/particles.adoc

@@ -8,7 +8,7 @@ ifdef::env-github,env-browser[:outfilesuffix: .adoc]
 
 
 This is a new particle system for jME3 posted for review and comments. This is an opportunity for people to comment on and request changes to the +++<abbr title="Application Programming Interface">API</abbr>+++ or the internal functionality of the system.
-The code for this particle system can be found link:https://code.google.com/p/jmonkeyplatform-contributions/source/browse/#svn%2Ftrunk%2FParticleController[here]
+The code for this particle system can be found link:https://github.com/jMonkeyEngine-Contributions/ParticleController[jMonkeyEngine-Contributions]
 
 Apologies for the slight jitter in some of the videos, the VideoRecorderState seems to be causing some issues which are not present when the application is running normally.