GIF diagram on front page

[goodboy]

On martin's blog post there's a really cool .gif that (I've imagined and) I'd like to copy and put in the readme and/or docs but with actor and function labeling following an in depth example.

https://250bpm.com/blog:124/calltree.gif

See the post here: http://250bpm.com/blog:124

[goodboy]

Another project we could look at for autogenning some diagrams like this that's trio native: https://github.com/ianchen-tw/trio-vis