This is a simple Telegram bot in c# that could be used as a template or for learning basic features
- Echoes text sent by user
- Returns UserID of the sender or of another user if replied to with the command (Telegram does not allow the bot to return the userID of users that are simply tagged to the command
- The Bot can create an in-chat keyboard (callback queries) and replies with the key clicked
- Bot sends "Farewell" with a specific command