Edits for network bonding article

[Ben Cotton]

Ryan (or anyone else who takes an editorial pass at my network bonding article),

It occurred to me this morning that I added myself to the `wheel`
group on my laptop a while ago so I was able to run the commands in my
post without sudo. But most readers will need that. Can you please
prefix the commands with sudo (or add another suitable indication that
the commands will need elevated privileges) as you prepare it for
publication?

Thanks,
BC