Update hello_animation.adoc

Cleaned up first exercise so it is easier to follow.

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

@@ -278,13 +278,17 @@ To use the input controller, you need to implement the actionListener by testing
 
 Make a mouse click trigger another animation sequence!
 
-.  Create a second channel in the controller
-..  Create a new key trigger mapping and action (see: <<jme3/beginner/hello_input_system#,Hello Input>>)
-..  Tip: Do you want to find out what animation sequences are available in the model? Use: 
+.  Create a second channel in the controller.
+.  Create a new key trigger mapping and action. (see: <<jme3/beginner/hello_input_system#,Hello Input>>)
+
+[TIP]
+====
+Do you want to find out what animation sequences are available in the model? Use: 
 [source,java]
 ----
 for (String anim : control.getAnimationNames()) { System.out.println(anim); }
 ----
+====