- https://core.telegram.org/bots/features#botfather
- https://core.telegram.org/bots/api#authorizing-your-bot
- https://telegram.me/botfather
- https://core.telegram.org/bots/api#getupdates
- https://api.telegram.org/botxxx:yyy/getUpdates
- https://core.telegram.org/bots/api#sendmessage
- https://api.telegram.org/botxxx:yyy/sendMessage?chat_id=xx&text=text