Adding doc diagrams to twarc

[brovatten]

Hi,

I built CodeBoarding, an open-source tool that generates interactive architecture diagrams (static analysis + LLM) to help contributors and users navigate Python repos.

I believe this would be a useful addition to the existing docs. Please see the diagram below and see if you agree:
https://github.com/CodeBoarding/GeneratedOnBoardings/blob/main/twarc/on_boarding.md

Let me know if you are interested in adding this to twarc I would happily make a PR!