[gtk] docs: fix typo in function name

[Mohammed Sadiq <pksadiq src gnome org>]

commit d936a9ae89ee862ba61848150099f2c7afebbf7e
Author: Mohammed Sadiq <sadiq sadiqpk org>
Date:   Sat May 4 15:09:35 2019 +0530

    docs: fix typo in function name

 docs/reference/gtk/actions.xml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/docs/reference/gtk/actions.xml b/docs/reference/gtk/actions.xml
index 3d789b0c79..e1b21d5a86 100644
--- a/docs/reference/gtk/actions.xml
+++ b/docs/reference/gtk/actions.xml
@@ -325,7 +325,7 @@
 
     <para>
       Typical uses of GMenu inside GTK are to set up an application
-      menu or menubar with gtk_appication_set_app_menu() or
+      menu or menubar with gtk_application_set_app_menu() or
       gtk_application_set_menubar(). Another, maybe more common use
       is to create a popover for a menubutton, using
       gtk_menu_button_set_menu_model().