[Midnightbsd-cvs] src: README: alright document nrelease too

[laffer1 at midnightbsd.org]

Log Message:
-----------
alright document nrelease too

Modified Files:
--------------
    src:
        README (r1.7 -> r1.8)
        (http://cvsweb.midnightbsd.org/src/README?r1=1.7&r2=1.8)