prelim FAQ update: Installation Instructions

[DJ Delorie]

> "Cygnus Solution" should be "Cygnus Solutions" throughout.

Actually, it should be something like "Cygnus Solutions, a Red Hat
Company" although shortly it will be just "Red Hat".

> Unless setup has been changed, those who are downloading the files for
> themselves may preserve the directory structure found on the Net and any
> -src.tar.gz files found in that structure will be ignored.

That has not changed.