Update shape.adoc

Corrected broken float-block for Dome.

src/docs/asciidoc/jme3/advanced/shape.adoc

@@ -38,7 +38,7 @@ image::jme3/advanced/sphere.png[sphere.png,width="108",height=""]
 
 [.float-group]
 --
-[.right-.text-left]
+[.right.text-left]
 image::jme3/advanced/dome.png[dome.png,width="108",height=""]
 *  com.jme3.scene.shape.Dome – A semi-sphere, e.g. SkyDome.
 --
@@ -47,14 +47,14 @@ image::jme3/advanced/dome.png[dome.png,width="108",height=""]
 --
 [.right.text-left]
 image::jme3/advanced/cone.png[cone.png,width="108",height=""]
-**  For a cone, set the Dome's radialSamples>4 and planes=2. 
+*  For a cone, set the Dome's radialSamples>4 and planes=2. 
 --
 
 [.float-group]
 --
 [.right.text-left]
 image::jme3/advanced/pyramid.png[pyramid.png,width="108",height=""]
-**  For a pyramid, set the Dome's radialSamples=4 and planes=2. 
+*  For a pyramid, set the Dome's radialSamples=4 and planes=2. 
 --
 
 [.float-group]