README.md comment

[jsikorsky]

Hi,

first of all, I'd like to thank you for your great work!

I'd like comment the following statement in README.md, which might be true for most network configurations, but not always.
You can include additional common names for your certificate, so long as they resolve to the same WAN address:

In my opinion, it should read something like this:
You can include additional common names for your certificate, so long as they are configured on any interface of the router, accessible from internet.

I use IPv6 and I have an unique global IPv6 address configured on WAN and LAN interfaces of the router. So I could use WAN and LAN name in the certificate request without any trouble.

Also, static host names are not necessary, as soon as are resolved by configured DNS server.