Usage info

If you are already using zsh with OhMyZsh extention, then skip all the setup steps. Otherwise:

• To start the zsh container, run docker-compose up
• To connect to it under Mac or Linux, run ./connect.sh script. Under windows execute it's content, which is docker exec -it `docker ps --filter "label=git-workshop" --format "{{.Names}}"` /bin/zsh