fix artist list for radio

_data/radio.yml

@@ -4,6 +4,8 @@
   url: 'https://rskpmusic.bandcamp.com'
 - name: Baatar & LK de l'Hotel Moscou
   url: 'https://rskpmusic.bandcamp.com/'
+- name: R$KP
+  url: 'https://rskpmusic.bandcamp.com/'
 - name: Baatar
   url: 'https://rskpmusic.bandcamp.com/'
 - name: Budget Scifi From FragleBay
@@ -24,6 +26,8 @@
   url: 'https://jovanioccomy.bandcamp.com'
 - name: kantaro.
   url: 'https://soundcloud.com/kantaromusic'
+- name: 徒 setto セット
+  url: 'https://setto.basspistol.com'
 - name: Luka Prinčič
   url: 'https://music.lukaprincic.si'
 - name: Malmö Werewolf