[docs] points to abandoned netifaces module

[mbeijen]

Summary

In the docs for psutil.net_if_addrs() it reads:

if you’re interested in others families (e.g. AF_BLUETOOTH) you can use the more powerful netifaces extension.

However the netifaces module is archived by its owner four years ago --> https://github.com/al45tair/netifaces

Maybe this remark can be removed? there is also netifaces2 but it seems a bit rough. (also see the typo 'otherS families')