[gnome-devel-docs/gnome-3-12] tech-atk.page: Add missing word

[Christian Kirbach <ckirbach src gnome org>]

commit 3ce338aa57b7375f08ae00ab6d864c9c28f76092
Author: Christian Kirbach <christian kirbach gmail com>
Date:   Mon Jan 12 23:53:06 2015 +0100

    tech-atk.page: Add missing word

 platform-overview/C/tech-atk.page |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/platform-overview/C/tech-atk.page b/platform-overview/C/tech-atk.page
index c684ae2..f46536a 100644
--- a/platform-overview/C/tech-atk.page
+++ b/platform-overview/C/tech-atk.page
@@ -42,7 +42,7 @@ information to ATK.  If you develop custom widgets, you should ensure
 that they expose their properties to ATK.  You should also avoid using
 sound, graphics, or color as the sole means of conveying information
 to the user; have redundant ways of providing this information instead of
-relying on the user being to perceive a particular medium.</p>
+relying on the user being able to perceive a particular medium.</p>
 
 <p>The GNOME desktop ships with a number of accessibility tools which enable
 users with disabilities to take full advantage of their desktop and