Add section on starting docker and sudo for docker-compose

[marco-parillo]

No description provided.

[drnic]

I really appreciate the PR.

My thinking is that your suggestions are specific to people running an OS with systemd installed (systemctl), and docker is installed for root user only (sudo).

I think it’s out of scope for this tutorial on Concourse CI to show all the ways to install and use Docker. We are lucky that Docker has a good set of docs and a huge community/stackoverflow to help people get started with Docker & Docker Compose.

Is that ok?

[marco-parillo]

Of course, it is OK. Supposing I keep my fork for my personal notes. How did you turn all those markdown files into your website?

[drnic]

See readme for some info on rendering locally.

We use mkdocs (a python project) to convert markdown to html; and the mkdocs-material project for many of the niceties of the final product.