update demo in readme

Author: ashiven

README.md

@@ -13,9 +13,8 @@
 [![PyPI version](https://badge.fury.io/py/cs2tracker.svg)](https://badge.fury.io/py/cs2tracker)
 [![GitHub Issues or Pull Requests](https://img.shields.io/github/issues/ashiven/cs2tracker)](https://github.com/ashiven/cs2tracker/issues)
 [![GitHub Issues or Pull Requests](https://img.shields.io/github/issues-pr/ashiven/cs2tracker)](https://github.com/ashiven/cs2tracker/pulls)
-![GitHub Repo stars](https://img.shields.io/github/stars/ashiven/cs2tracker)
 
-<img src="https://github.com/user-attachments/assets/9585afb2-bf1a-473c-be5d-cccbb3349b9a"/>
+<img src="./assets/demo.gif"/>
 </div>
 
 ## Table of Contents