documentation patch

[Brian Sammon]

Last month when I started experimenting with openbios, I found the 
documentation to be misleading about which files to call from grub.

Here's a patch to the README which I hope clarifies the matter:

[Stefan Reinauer]

* Brian Sammon  [050125 02:52]:
> Last month when I started experimenting with openbios, I found the 
> documentation to be misleading about which files to call from grub.
>
> Here's a patch to the README which I hope clarifies the matter:

Thanks. It's committed.

Stefan