[gtk] docs: Fix up the GtkNativeDialog section

[Matthias Clasen <matthiasc src gnome org>]

commit 61ccf4e71989e01c60c5ab2cbcd44858ae810653
Author: Matthias Clasen <mclasen redhat com>
Date:   Sat Jun 6 12:59:58 2020 -0400

    docs: Fix up the GtkNativeDialog section
    
    Without GtkNativeDialog in the section list,
    links are not generated from the object hierarchy.

 docs/reference/gtk/gtk4-sections.txt | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)
---
diff --git a/docs/reference/gtk/gtk4-sections.txt b/docs/reference/gtk/gtk4-sections.txt
index 1ceb90463d..3808932479 100644
--- a/docs/reference/gtk/gtk4-sections.txt
+++ b/docs/reference/gtk/gtk4-sections.txt
@@ -2055,7 +2055,7 @@ gtk_info_bar_get_type
 <SECTION>
 <FILE>gtknativedialog</FILE>
 <TITLE>GtkNativeDialog</TITLE>
-GTK_TYPE_NATIVE_DIALOG
+GtkNativeDialog
 GtkNativeDialogClass
 gtk_native_dialog_show
 gtk_native_dialog_hide
@@ -2067,9 +2067,8 @@ gtk_native_dialog_set_title
 gtk_native_dialog_get_title
 gtk_native_dialog_set_transient_for
 gtk_native_dialog_get_transient_for
-<SUBSECTION Standard>
-GtkNativeDialog
 <SUBSECTION Private>
+GTK_TYPE_NATIVE_DIALOG
 gtk_native_dialog_get_type
 </SECTION>