Add deepwiki badge in the README

[aborruso]

Hi @jqnatividad ,
I love to use deepwiki to understand how to use the great qsv https://deepwiki.com/dathere/qsv

But the last indexed is 27 September 2025 (955d07)

If you add in the main README a deepwiki badge, qsv will have a weekly refresh in deepwiki.

Thank you, and if you don't want to, it's no problem.

[![deepwiki](https://deepwiki.com/badge.svg)](https://deepwiki.com/dathere/qsv)

[jqnatividad]

Excellent idea @aborruso ! Done! :)

[aborruso]

Excellent idea @aborruso ! Done! :)

I would have dreamed of doing my first PR myself :)

[jqnatividad]

Sorry! I would have loved for you to create your first qsv PR!

Next time, I'll be sure to wait for your PR ;)

Speaking of next time - keep em ideas coming!