[gentoo-doc] New documentation

[Michele Schiavo]

Hi.

I just setup on my network NFSv4 with Kerberos authentication. 
I spend a lot of day searching everything can help me and it was a big
war.

Now I setup correctly nfs and kerberos and i'd like to make a
guide-howto so
if there will be other people who wants to use Gentoo with nfsv4 and
kerberos
don't have to do all the dirty work i did.

So can I write a documentation ?

In the past I translate 2 document, so I hope I can do it without take a
lot of  time from you.

Let me know.

Thanks

Michele Schiavo

P.S. I'm Italian so I will do in English and Italiano.