In this directory, the system administrator can install menufiles to override the menu files provided by Debian in /usr/lib/menu, /usr/share/menu and /usr/share/menu/default. The filename should be the name of the package that it is overriding, and may contain as many lines and menu entries as necessary. Please run 'update-menus' after changing or adding files. For more info, please read /usr/share/doc/menu/html.