安裝docker-compose

安裝docker-compose，讓整體設計更有效率

https://github.com/docker/compose/releases

sudo curl -L https://github.com/docker/compose/releases/download/1.21.2/docker-compose-`uname -s`-`uname -m` -o /usr/local/bin/docker-compose
sudo chmod +x /usr/local/bin/docker-compose