docs: add docker install scripts

docs/docker.sh

@@ -0,0 +1,13 @@
+#!/bin/bash
+
+sudo apt update
+sudo apt install -y apt-transport-https ca-certificates curl software-properties-common
+
+curl -fsSL https://download.docker.com/linux/ubuntu/gpg | sudo apt-key add -
+sudo add-apt-repository "deb [arch=amd64] https://download.docker.com/linux/ubuntu $(lsb_release -cs) stable"
+sudo apt update
+sudo apt install -y docker-ce
+docker --version
+sudo groupadd docker
+sudo usermod -aG docker $USER
+newgrp docker