Update how to on website

[sirmonkey]

for the love of baby jesus
update
http://openvpn.net/index.php/open-sourc ... howto.html
to include
https://community.openvpn.net/openvpn/w ... nVPN-Howto
because the main howto doesn't really work anymore

and maybe add
http://superuser.com/questions/666452/o ... -to-my-vpn
for when the windows gui looks like it works but doesn't do much

thank you