docs: Mention bundle installation in overview
docs: Mention bundle installation in overview

flatpak/flatpak,alexlarsson/xdg-app,matthiasclasen/flatpak,handsome-feng/flatpak,flatpak/flatpak,handsome-feng/flatpak,amigadave/flatpak,matthiasclasen/xdg-app,flatpak/flatpak,matthiasclasen/xdg-app,matthiasclasen/xdg-app,GeorgesStavracas/flatpak,handsome-feng/flatpak,handsome-feng/flatpak,matthiasclasen/flatpak,matthiasclasen/xdg-app,handsome-feng/flatpak,GeorgesStavracas/flatpak,amigadave/flatpak,matthiasclasen/flatpak,GeorgesStavracas/flatpak,flatpak/flatpak,alexlarsson/xdg-app,GeorgesStavracas/flatpak,amigadave/flatpak,amigadave/flatpak,GeorgesStavracas/flatpak,alexlarsson/xdg-app,matthiasclasen/flatpak,flatpak/flatpak,alexlarsson/xdg-app,matthiasclasen/flatpak