Update it.m3u

Added link from https://github.com/iptv-org/iptv/issues/2173#issuecomment-785756029

channels/it.m3u

@@ -222,3 +222,5 @@ http://wms.shared.streamshow.it:1935/veratv/veratv/playlist.m3u8
 https://content.uplynk.com/channel/36953f5b6546464590d2fcd954bc89cf.m3u8
 #EXTINF:-1 tvg-id="" tvg-name="" tvg-country="IT" tvg-language="Italian" tvg-logo="https://www.dinamobasket.com/sites/default/files/videolina2012_tr.png" group-title="",Videolina (Sardegna) (404p)
 http://livestreaming.videolina.it/live/Videolina/playlist.m3u8
+#EXTINF:-1 tvg-id="" tvg-name="" tvg-country="IT" tvg-language="Italian" tvg-logo="https://upload.wikimedia.org/wikipedia/commons/c/c6/Rai_S%C3%BCdtirol_-_Logo_2019.svg" group-title="",Rai 3 Südtirol
+http://wzstreaming.rai.it/TVlive/liveStream/playlist.m3u8