docs: Add GtkListBox to docs

docs/reference/gtk/gtk-docs.sgml

@@ -231,6 +231,7 @@
       <xi:include href="xml/gtkaspectframe.xml" />
       <xi:include href="xml/gtkbox.xml" />
       <xi:include href="xml/gtkbbox.xml" />
+      <xi:include href="xml/gtklistbox.xml" />
       <xi:include href="xml/gtkfixed.xml" />
       <xi:include href="xml/gtkpaned.xml" />
       <xi:include href="xml/gtklayout.xml" />

docs/reference/gtk/gtk3-sections.txt

@@ -500,6 +500,52 @@ GtkBoxPrivate
 gtk_box_get_type
 </SECTION>
 
+<SECTION>
+<FILE>gtklistbox</FILE>
+<TITLE>GtkListBox</TITLE>
+GtkListBox
+GtkListBoxRow
+
+gtk_list_box_new
+gtk_list_box_select_row
+gtk_list_box_get_selected_row
+
+gtk_list_box_set_selection_mode
+gtk_list_box_get_selection_mode
+gtk_list_box_set_activate_on_single_click
+gtk_list_box_get_activate_on_single_click
+gtk_list_box_get_adjustment
+gtk_list_box_set_adjustment
+gtk_list_box_set_placeholder
+gtk_list_box_get_row_at_index
+gtk_list_box_get_row_at_y
+gtk_list_box_invalidate_filter
+gtk_list_box_invalidate_headers
+gtk_list_box_invalidate_sort
+gtk_list_box_set_filter_func
+gtk_list_box_set_header_func
+gtk_list_box_set_sort_func
+gtk_list_box_drag_highlight_row
+gtk_list_box_drag_unhighlight_row
+
+gtk_list_box_row_new
+gtk_list_box_row_changed
+gtk_list_box_row_get_header
+gtk_list_box_row_get_type
+gtk_list_box_row_set_header
+
+<SUBSECTION Standard>
+GTK_IS_LIST_BOX
+GTK_IS_LIST_BOX_CLASS
+GTK_IS_LIST_BOX_ROW
+GTK_IS_LIST_BOX_ROW_CLASS
+GTK_TYPE_LIST_BOX
+GTK_TYPE_LIST_BOX_ROW
+
+<SUBSECTION Private>
+gtk_list_box_get_type
+</SECTION>
+
 <SECTION>
 <FILE>gtkbuildable</FILE>
 GtkBuildable