Update macos and linux docker & docker compose installation

README.md

@@ -89,6 +89,22 @@ On macos just:
 ```bash
 brew install docker
 brew install docker-compose
+brew cask install docker
+```
+
+On linux:
+```bash
+# Install Docker
+sudo apt-get update
+sudo apt-key adv --keyserver hkp://p80.pool.sks-keyservers.net:80 --recv-keys 58118E89F3A912897C070ADBF76221572C52609D
+sudo apt-add-repository 'deb https://apt.dockerproject.org/repo ubuntu-xenial main'
+sudo apt-get update
+apt-cache policy docker-engine
+sudo apt-get install -y docker-engine
+
+# Install Docker Compose
+sudo curl -o /usr/local/bin/docker-compose -L "https://github.com/docker/compose/releases/download/1.15.0/docker-compose-$(uname -s)-$(uname -m)"
+sudo chmod +x /usr/local/bin/docker-compose
 ```
 
 ### Installation