updating NXDN Talk Groups

adding corrections for NXDN Talk Groups

NXDN / NXREF / NXCORE  Talk Groups 

Service	TalkGroup	Dashboard
Canada	TG 302	p25canada.hopto.org/nxdn/
VK 505	TG 505	43.229.63.42/db/      linked to XLX389D
50599	TG 50599	nxdn.duckdns.org/9b/
CQ-UK	TG 10922	www.mb6er.com/nxdn
Deutsch	TG 20000	srv08.oevsv.at/nxdn/
31088	TG 31088	54.191.50.212
50525	TG 50525	50525.nxref.org
65000	TG 65000	nxdn.n18.de/

Deprecated :

ZL 530			TG 530		101.98.22.194:85
1200		TG 1200					1200.mmdvmvk.org
Pacific	TG 10400					nxdn.mmdvmvk.org
25000			TG 25000	45.62.211.216

NXDN info