[gtk+] Minor documentation improvement

[Matthias Clasen <matthiasc src gnome org>]

commit 94f0cef6fc58afe49d789809574c8f5cc5759f50
Author: Matthias Clasen <mclasen redhat com>
Date:   Sun Mar 6 10:23:49 2016 -0500

    Minor documentation improvement
    
    https://bugzilla.gnome.org/show_bug.cgi?id=583780

 gtk/gtktogglebutton.c |    5 ++++-
 1 files changed, 4 insertions(+), 1 deletions(-)
---
diff --git a/gtk/gtktogglebutton.c b/gtk/gtktogglebutton.c
index cc73223..ac695d1 100644
--- a/gtk/gtktogglebutton.c
+++ b/gtk/gtktogglebutton.c
@@ -399,7 +399,10 @@ gtk_toggle_button_get_property (GObject      *object,
  *
  * Sets whether the button is displayed as a separate indicator and label.
  * You can call this function on a checkbutton or a radiobutton with
- * @draw_indicator = %FALSE to make the button look like a normal button
+ * @draw_indicator = %FALSE to make the button look like a normal button.
+ *
+ * This can be used to create linked strip of buttons that work like
+ * a #GtkStackSwitcher.
  *
  * This function only affects instances of classes like #GtkCheckButton
  * and #GtkRadioButton that derive from #GtkToggleButton,