[atkmm] atkmm.h: This version of atkmm is not used by gtkmm

[Kjell Ahlstedt <kjellahl src gnome org>]

commit ec326f534060310f1bca69ac58a8f561d97fdc14
Author: Kjell Ahlstedt <kjellahlstedt gmail com>
Date:   Wed Dec 22 18:40:21 2021 +0100

    atkmm.h: This version of atkmm is not used by gtkmm

 atk/atkmm.h | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)
---
diff --git a/atk/atkmm.h b/atk/atkmm.h
index a255fbe..6c45ae9 100644
--- a/atk/atkmm.h
+++ b/atk/atkmm.h
@@ -20,12 +20,13 @@
 #ifndef _ATKMM_H
 #define _ATKMM_H
 
-
 /** @mainpage atkmm Reference Manual
  *
  * @section description Description
  *
- * atkmm is the official C++ interface for the <a href="http://library.gnome.org/devel/atk/stable/";>ATK</a> 
accessibility toolkit library. It may be used, for instance, by user interfaces implemented with gtkmm.
+ * atkmm is the official C++ interface for the
+ * <a href="http://library.gnome.org/devel/atk/stable/";>ATK</a>
+ * accessibility toolkit library.
  *
  * @section basics Basic usage
  *