Graphic of the control flow

[blaggacao]

Note to self: make a graphic for the readme / docs to explain the devos control flow:

• modules -> profiles -> suites

• suites -> hosts

[montchr]

This seems like a good use case for GitHub's recently-added support for Mermaid syntax in Markdown. I've been meaning to experiment with Mermaid but haven't yet found the time.

https://github.com/mermaid-js/mermaid
https://github.blog/2022-02-14-include-diagrams-markdown-files-mermaid/