Update scene_composer.adoc

Floated text to the left of images.

src/docs/asciidoc/sdk/scene_composer.adoc

@@ -37,8 +37,8 @@ To create a blank scene file do the following:
 
 == Loading the scene
 
-
-image::sdk/jmonkeyplatform-docu-2.png[jmonkeyplatform-docu-2.png,width="421",height="298",align="right"]
+[.right]
+image::sdk/jmonkeyplatform-docu-2.png[jmonkeyplatform-docu-2.png,width="421",height="298"]
 
 
 To open a scene
@@ -71,7 +71,7 @@ You can add a variety of special objects with the SceneComposer, including light
 
 == Adding Models to the scene
 
-
+[.right]
 image::sdk/jmonkeyplatform-docu-3.png[jmonkeyplatform-docu-3.png,width="421",height="298",align="right"]