Setup secrets in Settings --> Secrets

GH_TOKEN :- Your github personal access token, from https://github.com/settings/tokens
MIRROR_REPOSLUG :- Your Secret Repository, as in "<username>/<reponame>"
GitHubName:- Your GitHub UserName
GitHubMail:- You GitHub Email Address
Docker_Username:- Your DockerHub Username
Docker_Password:- Your DockerHub Password

And That's it.