Update the_scene_graph.adoc

Fixed typo in image width.
Floated text to the left of first image.

src/docs/asciidoc/jme3/the_scene_graph.adoc

@@ -17,8 +17,8 @@ Then continue learning about jME3 concepts here.
 
 == Coordinate System
 
-
-image::jme3/intermediate/coordinate-system.png[coordinate-system.png,with="235",height="210",align="right"]
+[.right]
+image::jme3/intermediate/coordinate-system.png[coordinate-system.png,width="235",height="210",align="right"]
 
 
 The jMonkeyEngine uses a right-handed coordinate system, just as OpenGL does.