make: self-documenting `Makefile`
make: self-documenting `Makefile`

because I can

mirage/mirage-vagrant-vms,yifanz/mirage-vagrant-vms,sjfloat/mirage-vagrant-vms,englishm/vagrant-xen,englishm/vagrant-xen,mirage/mirage-vagrant-vms,sjfloat/mirage-vagrant-vms,yifanz/mirage-vagrant-vms