Verify openzeppelin contract on etherscan using remix

:computer: Environment

:memo:Details

:1234: Code to reproduce

I get a lot of help using Truffle /Node but i am using Remix.ethereum.org , up until compile and deloy was successful but when verifying, there is always error. I cant seem to find a proper site to guide me on steps to verify through remix or at least to get open zep contrar verified. Please help !! Thanks in advance

Verifying with Remix is difficult. Please refer to the follow: