Telegram Bot FS2

Example purely functional telegram bot implementation with FS2 and http4s client.

Launching the bot

1. Create a new bot for yourself with @Botfather: https://core.telegram.org/bots#6-botfather
2. Export the token to env variables: export TODOLIST_BOT_TOKEN=<tokem>
3. sbt run
4. Just chat with the bot using your telegram app!