comment update list store method

src/tour_list.vala

@@ -461,6 +461,9 @@ namespace Sernatur {
 			region.sort_order = Gtk.SortType.DESCENDING;
 		}
 
+		/**
+		 * Update the list store with the data from the database
+		 */
 		private void update_list_store () {
 			tour_list = Tour.get_all_tours (conn.db);