Add El Nueve

I don't know how this list works for group-titles so I didn't use one.

channels/ar.m3u

@@ -120,3 +120,5 @@ https://wowza.telpin.com.ar:1935/telpintv/ttv.stream/playlist.m3u8
 http://live-edge01.telecentro.net.ar/live/smil:trm.smil/playlist.m3u8
 #EXTINF:-1 tvg-id="TVManaArgentina.ar" tvg-name="TV Maná Argentina" tvg-country="AR" tvg-language="Spanish" tvg-logo="https://i.imgur.com/GVI8kkp.jpg" group-title="Local",TV Maná Argentina (576p)
 http://streamspub.manasat.com:1935/tvar/tvmanaar2/playlist.m3u8
+#EXTINF:-1 tvg-id="elnueve.ar" tvg-name="El Nueve" tvg-country="AR" tvg-language="Spanish" tvg-logo="https://www.elnueve.com.ar/wp-content/themes/elnueve-ned-theme/img/logo.png" group-title="",El Nueve
+https://cdn88.theus6tv.tk/argentina/broadcast/el-nueve.m3u8