Add note about compiling artifacts to releasing steps (#1377)
Add note about compiling artifacts to releasing steps (#1377)

* add note about compiling artifacts to release notes

* add explanation of truffle bug

OpenZeppelin/openzeppelin-contracts,OpenZeppelin/zeppelin-solidity,OpenZeppelin/zeppelin-solidity,OpenZeppelin/zep-solidity,OpenZeppelin/openzeppelin-contracts,OpenZeppelin/zep-solidity,OpenZeppelin/openzeppelin-contracts