[CentOS-docs] Updates for Tips and Tricks/YUM and RPM page

Sat Sep 25 13:15:39 UTC 2010
Phil Schaffner <P.R.Schaffner at IEEE.org>

On Sat, 2010-09-25 at 07:07 -0400, Robert P. J. Day wrote:
> (hoping this is the right way to submit updates for wiki pages.)

Made your recommended changes.

Thanks,
Phil