Cleaned up inverting process.

src/docs/asciidoc/jme3/external/blender.adoc

@@ -267,23 +267,10 @@ The difference between them is that the green channel is inverted. One would exp
 
 Because of this, you need to fix the colors to prepare the normal map for using it with the JME Lighting Material. You should only have to invert the green channel, the red and blue channels should stay unchanged. The curve for the red and blue channels should go from bottom left to top right, the green from top left to bottom right.
 
-To do this after baking, in the "`UV Editing`" layout, from the "`UV Image Editor`" header select `menu:Image[Invert>Invert Green Channel]`. Don't forget to save the `Normal` map image (monkey_bump_invert for example) after inverting.
+To do this after baking and saving the original `Normal` image:
 
-//To do this, go to the Blender Node Window
-
-//*  Here is a `Blender Node` example. It fixes the normal colors:
-//+
-//image::jme3/external/monkey_nodes_invert.png[monkey_nodes_invert.png,width="50%",height=""]
-
-//NOTE: The output file will be saved to a sub-folder that will be created inside the `Base Path` folder you choose for the `File Output` node.
-
-//*  Here are the colors configuration:
-//+
-//image::jme3/external/monkey_node_curve.png[monkey_node_curve.png,width="50%",height=""]
-
-//NOTE: You only need the one `RGB Curves` node. The three shown here are just for demonstration purposes.
-
-//*  After rendering (kbd:[F12] ), save the file to a destination you want and use it with the JME Lighting Material and the "`LowPoly`" version of the model.
+. In the "`UV Editing`" layout, from the "`UV Image Editor`" header select `menu:Image[Invert>Invert Green Channel]`.
+.  Save the inverted image to a destination you want and use it with the JME Lighting Material and the "`LowPoly`" version of the model.
 
 .Normal map invert results (Method 2 example)
 image::jme3/external/monkey_bump2_invert.png[monkey_bump2_invert.png,width="50%",height=""]