minor update to README.CYGWIN
minor update to README.CYGWIN

dhalperi/batfish,batfish/batfish,intentionet/batfish,intentionet/batfish,arifogel/batfish,dhalperi/batfish,intentionet/batfish,dhalperi/batfish,intentionet/batfish,batfish/batfish,arifogel/batfish,intentionet/batfish,arifogel/batfish,batfish/batfish