change to xref

docs/modules/ROOT/pages/jme3/advanced/particle_emitters.adoc

@@ -20,7 +20,7 @@ Use the <<sdk/scene_explorer#,Scene Explorer>> in the <<sdk#,SDK>> to design and
 ====
 
 
-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:jme3/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: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"]
 
 
 == Create an Emitter

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

@@ -6,7 +6,7 @@
 
 
 [.right]
-image::jme3/beginner/beginner-effect-fire.png[beginner-effect-fire.png,150,165]
+image::beginner/beginner-effect-fire.png[beginner-effect-fire.png,150,165]
 
 
 When you see one of the following in a game, then a particle system is likely behind it:
@@ -25,12 +25,7 @@ These scene elements cannot be modeled by meshes. In very simple terms:
 
 Particle effects can be animated (e.g. sparks, drops) and static (strands of grass, hair). Non-particle effects include bloom/glow, and motion blur/afterimage. In this tutorial you learn how to make animated particles (com.jme3.effect).
 
-
-[TIP]
-====
-To use the example assets in a new jMonkeyEngine SDK project, btn:[RMB] click your project, select menu:Properties[Libraries>Add Library] and add the "`jme3-test-data`" library.
-====
-
+include::partial$add-testdata-tip.adoc[]
 
 
 == Sample Code