readme.md updated for API
readme.md updated for API

maraoz/bitcore-node,martindale/bitcore,martindale/bitcore,bitjson/bitcore,pnagurny/bitcore-node,bitjson/bitcore,bitpay/bitcore,bitpay/bitcore,bitpay/bitcore,bitpay/bitcore,martindale/bitcore,martindale/bitcore,bitjson/bitcore,bitjson/bitcore,dashevo/insight-api-dash,netanelkl/bitcore-node