chore: update README badges

Author: alDuncanson

README.md

@@ -2,8 +2,8 @@
 
 [![CI](https://github.com/alDuncanson/handler/actions/workflows/ci.yml/badge.svg)](https://github.com/alDuncanson/handler/actions/workflows/ci.yml)
 [![A2A Protocol](https://img.shields.io/badge/A2A_Protocol-v0.3.0-blue)](https://a2a-protocol.org/latest/)
-[![GitHub release](https://img.shields.io/github/v/release/alDuncanson/handler)](https://github.com/alDuncanson/handler/releases)
 [![PyPI version](https://img.shields.io/pypi/v/a2a-handler)](https://pypi.org/project/a2a-handler/)
+[![PyPI downloads](https://img.shields.io/pypi/dm/a2a-handler)](https://pypi.org/project/a2a-handler/)
 [![GitHub stars](https://img.shields.io/github/stars/alDuncanson/handler)](https://github.com/alDuncanson/handler/stargazers)
 
 An [A2A](https://a2a-protocol.org/latest/) Protocol client TUI and CLI.