change insight pool to 20
change insight pool to 20

martindale/bitcore,bitpay/bitcore,bitpay/bitcore-wallet-service,bitjson/bitcore,bitpay/bitcore,bitpay/bitcore,bitpay/bitcore-wallet-service,matiu/bitcore-wallet-service,matiu/bitcore-wallet-service,bitjson/bitcore,martindale/bitcore,bitpay/bitcore,bitjson/bitcore,bitjson/bitcore,martindale/bitcore,martindale/bitcore