[GnomeMeeting-list] Small correction to FAQ 6.3.1

[José Fonseca <j_r_fonseca yahoo co uk>]

As I was eagerly setting up to try out the new NAT capabilities of
gnomemeeting I've noticed a small incorrection in the FAQ. In the 
last line of 6.3.1 it should be "$OUT_DEV" instead of "ppp0". I 
doubt anyone misses it but there is no reason why not correct it.

Anyway, thanks for this great software whose quality and versatility
exceeds by far those of the inspirational application - NetMeeting.
GnomeMeeting surely shines on its own.

José Fonseca