Changes for the VPN over IPsec page

[Vagif Zeynalov]

Hi!

Could you please to add on this page 
https://www.freebsd.org/doc/en_US.ISO8859-1/books/handbook/ipsec.html 
the example how to configure the interface with rc.conf

cloned_interfaces="gif0"
ifconfig_gif0="inet local_internal_IP remote_internal_IP netmask 
255.255.255.255 tunnel local_external_IP remote_external_IP"


Thank you,
Vagif Zeynalov