more explicit message

bot.go

@@ -413,7 +413,7 @@ func botStart(m *tb.Message) {
 		}
 	}
 	if m.Sender.ID != int(cfg.Telegram.AdminID) && !actuallyReady {
-		bot.SendChat(m.Chat.ID, "Not all players are ready. Only the admin can force the start.")
+		bot.SendChat(m.Chat.ID, "Not all players are ready (see /players). Only the admin can force the start.")
 		return
 	}