d.northarrow: keywords added

display/d.northarrow/main.c

@@ -45,6 +45,8 @@ int main(int argc, char **argv)
     module = G_define_module();
     G_add_keyword(_("display"));
     G_add_keyword(_("cartography"));
+    G_add_keyword(_("map annotations"));
+    G_add_keyword(_("arrow"));
     module->description =
         _("Displays a north arrow on the graphics monitor.");