Update it.m3u

Added links from https://github.com/iptv-org/iptv/issues/2173#issuecomment-817338696

channels/it.m3u

@@ -276,3 +276,19 @@ http://wms.shared.streamshow.it/veratv/veratv/playlist.m3u8
 http://wms.shared.streamshow.it:1935/veratv/veratv/playlist.m3u8
 #EXTINF:-1 tvg-id="VideolinaSardegna.it" tvg-name="Videolina (Sardegna)" 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-country="IT",Rai 1 [Geo-blocked]
+https://mediapolis.rai.it/relinker/relinkerServlet.htm?cont=2606803
+#EXTINF:-1 tvg-country="IT",Rai 2 [Geo-blocked]
+https://mediapolis.rai.it/relinker/relinkerServlet.htm?cont=308718
+#EXTINF:-1 tvg-country="IT",Rai 3 [Geo-blocked]
+https://mediapolis.rai.it/relinker/relinkerServlet.htm?cont=308709
+#EXTINF:-1 tvg-country="IT",Rai 4 [Geo-blocked]
+https://mediapolis.rai.it/relinker/relinkerServlet.htm?cont=746966
+#EXTINF:-1 tvg-country="IT",Rai 5 [Geo-blocked]
+https://mediapolis.rai.it/relinker/relinkerServlet.htm?cont=395276
+#EXTINF:-1 tvg-country="IT",Rai Movie [Geo-blocked]
+https://mediapolis.rai.it/relinker/relinkerServlet.htm?cont=747002
+#EXTINF:-1 tvg-country="IT",Rai Premium [Geo-blocked]
+https://mediapolis.rai.it/relinker/relinkerServlet.htm?cont=746992
+#EXTINF:-1 tvg-country="IT",Rai Sport+ [Geo-blocked]
+https://mediapolis.rai.it/relinker/relinkerServlet.htm?cont=358025