[gtk/matthiasc/for-master] stack: Minor doc addition

[Matthias Clasen <matthiasc src gnome org>]

commit 0a71dc1bedf40a791e1f5924e78552ae31b18cde
Author: Matthias Clasen <mclasen redhat com>
Date:   Mon Oct 19 21:15:08 2020 -0400

    stack: Minor doc addition

 gtk/gtkstack.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/gtk/gtkstack.c b/gtk/gtkstack.c
index a9a0902c23..b97ebb54bb 100644
--- a/gtk/gtkstack.c
+++ b/gtk/gtkstack.c
@@ -84,7 +84,7 @@
  * # Accessibility
  *
  * GtkStack uses the #GTK_ACCESSIBLE_ROLE_TAB_PANEL for the stack
- * pages.
+ * pages, which are the accessible parent objects of the child widgets.
  */
 
 /**