change bot message

locales/active.en.yaml

@@ -1 +1 @@
-Advertise: '@{{.Host}} is now hosting Audon!'
+Advertise: '@{{.Host}} is livestreaming at Audon!'

locales/active.fr.yaml

@@ -1,3 +1,3 @@
 Advertise:
   hash: sha1-bac4955e5b2655d6226dfb6e190f591f0e9f64cf
-  other: "@{{.Host}} est maintenant l'hôte d'Audon !"
+  other: "@{{.Host}} fait du livestreaming à Audon !"

locales/active.ja.yaml

@@ -1,3 +1,3 @@
 Advertise:
   hash: sha1-bac4955e5b2655d6226dfb6e190f591f0e9f64cf
-  other: "@{{.Host}} が Audon をホスト中！"
+  other: "@{{.Host}} が Audon でライブ配信中！"