Archiving orderbook-delta-bot due to FTX criminality/insolvency

[dineshpinto]

Nothing really to say, I will probably write a future version supporting a different exchange (ideally Binance, because of liquidity, but perps are not supported in my jurisdiction).

I look forward to the day I can write this for a decentralized and permissionless on-chain protocol.

Thank you for all your feedback and DMs.