[gimp-help] Fixed colorize automatic preview button to option

[Marco Ciampa <marcoc src gnome org>]

commit 3db01c854cb61e8976dbcfc3a46211fb61a88f8e
Author: Marco Ciampa <ciampix posteo net>
Date:   Thu Sep 27 18:25:15 2018 +0200

    Fixed colorize automatic preview button to option

 src/menus/colors/colorize.xml | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/src/menus/colors/colorize.xml b/src/menus/colors/colorize.xml
index 6beed75be..842b6a8a6 100755
--- a/src/menus/colors/colorize.xml
+++ b/src/menus/colors/colorize.xml
@@ -144,8 +144,8 @@
         <term>Preview</term>
         <listitem>
           <para>
-            The Preview button makes all changes dynamically so that they can
-            be viewed immediately.
+            The Preview option enable rendering of all changes immediately
+           on canvas.
           </para>
         </listitem>
       </varlistentry>