[gtk/gtk-3-24] widget: Fix example code in doc

[Mohammed Sadiq <pksadiq src gnome org>]

commit 1918fefbd4ae8c6227beefc761420da32118e043
Author: Mohammed Sadiq <sadiq sadiqpk org>
Date:   Thu May 31 16:24:00 2018 +0530

    widget: Fix example code in doc

 gtk/gtkwidget.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/gtk/gtkwidget.c b/gtk/gtkwidget.c
index dd353998b5..ca0281cdd9 100644
--- a/gtk/gtkwidget.c
+++ b/gtk/gtkwidget.c
@@ -292,7 +292,7 @@
  *
  * An example of a UI definition fragment specifying an accessible:
  * |[
- * <object class="GtkButton" id="label1"/>
+ * <object class="GtkLabel" id="label1"/>
  *   <property name="label">I am a Label for a Button</property>
  * </object>
  * <object class="GtkButton" id="button1">