Add AEO quality badge to README (score: 55/100)

[digitamaz]

Hi! I'm behind Clarvia — an open quality scoring platform for AI tools and developer libraries.

Rich has an AEO (Agent Experience Optimization) score of 55/100 on Clarvia.

Embed a live badge in your README:

[![AEO Score](https://clarvia.art/api/badge/rich)](https://clarvia.art/tool/rich)

Full profile: https://clarvia.art/tool/rich — AI agent discoverability analysis.

[github-actions]

I hope I helped!

Consider sponsoring my work on Rich. I give tech support for free, in addition to maintaining Rich and Textual.

If you like using Rich, you might also enjoy Textual.

Will McGugan