gitlab-ci-multi-runner Package Installation on Mac

About gitlab-ci-multi-runner : The official GitLab CI runner written in Go!
More Information: https://gitlab.com/gitlab-org/gitlab-ci-multi-runner
Steps:

1. Launch Terminal by pressing command+space, type terminal and hit Enter key.
2. Run

   ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)" < /dev/null 2> /dev/null

3. Install

   brew install gitlab-ci-multi-runner

Done!