Adding UML Graphs to Elixir ExDocs

Not sure if I’m the only one, but I often find myself designing Elixir projects using AsciiDoctor - because I find the embedded PlantUML drawings very useful to model graphically processes, supervision trees and messages flowing between multiple GenServers.

I think that it would be useful to have such drawings as a part of the “standard” documentation that comes with an Elixir project, as generated by ExDocs - I used to do it with Mermaid.js at runtime, but it would be just as easy to leverage a local PlantUML or a webserver, generate the SVG for once, and add it to the documentation.