missing command in README at dfbsd ISO's root (cpdup /usr /mnt/usr)

[Tomaž Borštnar]

Hello!

	I succesfully installed it on a machine via live CD, but had to boot 
via CD once again, because there was a command missing to copy /usr  to 
hard disk which made loging into new system kinda impossible. No 
/usr/libexec/getty :)

Still good work anyway! From beginners point of view some example of 
actual values in disklabel would help a lot, but I guess new installer 
will take care of that.

Tomaz