[gimp-book-painting] img revision declaration of the paintbrush x airbrush comparison

[Americo Gobbo <amerigo src gnome org>]

commit 01bb8e2ee0b7d26cb14b240fa0e5445e326d982d
Author: Americo Gobbo <jag rabisco gmail com>
Date:   Sat Jul 14 11:38:53 2018 -0300

    img revision declaration of the paintbrush x airbrush comparison

 parametric-brushes.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/parametric-brushes.md b/parametric-brushes.md
index 13b8135..bbde480 100644
--- a/parametric-brushes.md
+++ b/parametric-brushes.md
@@ -39,7 +39,7 @@ After to work much with the variations of Pencil Generic... I have found a good
 
 I have verified, also, that is possible to use different tools, pencil, paintbrush and airbrush, but, 
effectively the airbrush is more interesting, mainly of the Rate and Flow controls.
 
-<figure><img src="parametric-brushes.assets/parametric-brushes-dry-media-airbrush-x-paintbrush.png" width="" 
title="Parametric brush with Dry Media Paint Dynamics - Paintbrush Tool versus Airbrush Tool" 
/><br><figcaption>Samples using round parametric brushes of the set with my paint dynamic Dry 
Media.</figcaption></figure>
+<figure><img src="parametric-brushes.assets/parametric-brushes-dry-media-airbrush-x-paintbrush.png" 
width="640" title="Parametric brush with Dry Media Paint Dynamics - Paintbrush Tool versus Airbrush Tool" 
/><br><figcaption>Samples using round parametric brushes of the set with my paint dynamic Dry 
Media.</figcaption></figure>
 
 In general, all size brushes are working well, but mainly between 8 ~ 64 pixels it seems the better 
compromise. The large brushes are interesting for covering large areas and is not possible to have a good 
shape, they are appearing a bit soft.