tab compltetion

sudo curl -Ls https://raw.githubusercontent.com/docker/docker-ce/master/components/cli/contrib/completion/bash/docker -o /etc/bash_completion.d/docker.sh <br>
sudo curl -Ls https://raw.githubusercontent.com/docker/compose/1.24.1/contrib/completion/bash/docker-compose -o /etc/bash_completion.d/docker-compose<br>
sudo curl -Ls https://raw.githubusercontent.com/docker/machine/v0.16.0/contrib/completion/bash/docker-machine.bash -o /etc/bash_completion.d/docker-machine<br>