Update hello_effects.adoc

Floated text to the left of images.

src/docs/asciidoc/jme3/beginner/hello_effects.adoc

@@ -11,8 +11,8 @@ ifdef::env-github,env-browser[:outfilesuffix: .adoc]
 Previous: <<jme3/beginner/hello_audio#,Hello Audio>>,
 Next: <<jme3/beginner/hello_physics#,Hello Physics>>
 
-
-image::jme3/beginner/beginner-effect-fire.png[beginner-effect-fire.png,150,165,align="right"]
+[.right]
+image::jme3/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:
@@ -110,8 +110,8 @@ link:https://github.com/jMonkeyEngine/jmonkeyengine/tree/master/jme3-examples/sr
 
 === Texture Animation and Variation
 
-
-image::jme3/beginner/Debris.png[Debris.png,96,96,align="right"]
+[.right]
+image::jme3/beginner/Debris.png[Debris.png,96,96]
 
 
 Start by choosing a material texture for your effect. If you provide the emitter with a set of textures (see image), it can use them either for variation (random order), or as animation steps (fixed order). 
@@ -202,8 +202,8 @@ For your game, you will likely create custom particle textures. Look at the fire
     
 ----
 
-
-image::jme3/beginner/flame.png[flame.png,96,96,align="right"]
+[.right]
+image::jme3/beginner/flame.png[flame.png,96,96]
 
 
 Compare the texture with the resulting effect.