Alternatively, if you don't want to use the dashboard, you can also add a notification through commands in Discord.
!twitch notif add
Enter the name of a text channel in your server. This is where Streamcord will send announcement messages.
Enter the name of the Twitch streamer that you want to be notified of.
Enter a custom message.
Now you've got your first notification set up. The next time that the streamer goes live, you'll receive a message in your notification channel!