add link to topic

docs/modules/core/pages/effect/particle_emitters.adoc

@@ -1,6 +1,6 @@
 = Particle Emmitter Settings
-:revnumber: 2.0
-:revdate: 2020/04/15
+:revnumber: 2.1
+:revdate: 2020/07/22
 :keywords: documentation, effect
 :uri-jmonkeyengine: https://github.com/jMonkeyEngine/jmonkeyengine/tree/master/
 :uri-forum: https://hub.jmonkeyengine.org/
@@ -16,7 +16,10 @@ Use the xref:sdk:scene_explorer.adoc[Scene Explorer] in the xref:sdk:sdk.adoc[SD
 ====
 
 
-image:jme3/advanced/explosion-5.png[explosion-5.png,width="150",height="100"]  image:jme3/advanced/particle.png[particle.png,width="150",height="100"]  image:tutorials:beginner/beginner-effect-fire.png[beginner-effect-fire.png,width="150",height="100"] image:jme3/advanced/butterfly-particle-emitter.png[butterfly-particle-emitter.png,width="150",height="100"]
+image:effect/explosion-5.png[explosion-5.png,width="150",height="100"]
+image:effect/particle.png[particle.png,width="150",height="100"]
+image:tutorials:beginner/beginner-effect-fire.png[beginner-effect-fire.png,width="150",height="100"]
+image:jme3/advanced/butterfly-particle-emitter.png[butterfly-particle-emitter.png,width="150",height="100"]
 
 
 == Create an Emitter