Documentation - Bots handle draw offers

[harsh inlet]

Hello, bots can handle draw offers with https://lichess.org/api/bot/game/{gameId}/draw/{accept}
but it's not listed in the docs.

[pseudo sentinel]

thanks for report, it would be much appreciated if you can create an issue at https://github.com/lichess-org/api (or much better: a pr 🤔 )