Update physics.adoc

Set table CollisionShape Method column width to 25, 50, 30 to make center column more readable.

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

@@ -194,7 +194,7 @@ a|Static terrains.
 |===
 
 On a CollisionShape, you can apply a few properties
-[cols="3", options="header"]
+[cols="25,50,30", options="header"]
 |===
 
 a| CollisionShape Method