[gtk+] docs: Add new headerbar api

[Matthias Clasen <matthiasc src gnome org>]

commit 7a483bbecccead3c2b98edda8846f2e1ad2836b0
Author: Matthias Clasen <mclasen redhat com>
Date:   Tue Dec 26 09:01:57 2017 -0500

    docs: Add new headerbar api
    
    Some functions have been renamed here.

 docs/reference/gtk/gtk4-sections.txt |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/docs/reference/gtk/gtk4-sections.txt b/docs/reference/gtk/gtk4-sections.txt
index 9a25b31..f183557 100644
--- a/docs/reference/gtk/gtk4-sections.txt
+++ b/docs/reference/gtk/gtk4-sections.txt
@@ -6338,8 +6338,8 @@ gtk_header_bar_set_custom_title
 gtk_header_bar_get_custom_title
 gtk_header_bar_pack_start
 gtk_header_bar_pack_end
-gtk_header_bar_set_show_close_button
-gtk_header_bar_get_show_close_button
+gtk_header_bar_set_show_title_buttons
+gtk_header_bar_get_show_title_buttons
 gtk_header_bar_set_decoration_layout
 gtk_header_bar_get_decoration_layout