[mythtvnz] Link to mailing list archive

[Robert Fisher]

This is for the administrator of this "mailing list". It has been 
bugging me for a while.

At the bottom of our emails there are some hyperlinks and the one to the 
archives is incorrect.

Archives http://www.gossamer-threads.com/lists/mythtv/mythtvnz/

diverts to:- https://www.carbon60.com/

The archive address is actually:-

https://lists.archive.carbon60.com/mythtv/mythtvnz/

Rob