What is “zsh-completions” Package?

Additional completion definitions for zsh
For more details: https://github.com/zsh-users/zsh-completions

Installation

• Open Terminal by pressing command+space then type terminal and hit Enter key.
• Install homebrew first.

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

• Install zsh-completions.

  brew install zsh-completions

Now, use zsh-completions!