🧹 chore: Add a Copier badge to README.md

Author: bassemkaroui

README.md

@@ -4,6 +4,7 @@
 
 A modern, batteries‑included [Copier](https://github.com/copier-org/copier) template for bootstrapping Python packages and applications managed with [uv](https://github.com/Astral-Projects/uv)
 
+[![Copier](https://img.shields.io/endpoint?url=https://raw.githubusercontent.com/copier-org/copier/master/img/badge/badge-grayscale-inverted-border-purple.json)](https://github.com/copier-org/copier)
 [![Copier Template](https://img.shields.io/badge/copier-9.6.0-blue.svg)](https://copier.readthedocs.io/)
 [![uv](https://img.shields.io/endpoint?url=https://raw.githubusercontent.com/astral-sh/uv/main/assets/badge/v0.json)](https://github.com/astral-sh/uv)
 [![Python 3.10–3.13](https://img.shields.io/badge/python-3.10%20|%203.11%20|%203.12%20|%203.13-blue.svg)]()