Tweaked table colum width.

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

@@ -284,7 +284,7 @@ If your executable throws a “Cannot locate resource runtime exception, check a
 
 
 === Loading Models and Scenes
-[cols="25,75", options="header"]
+[cols="20,80", options="header"]
 |===
 
 a| Task?