📃 docs(readme): add codecov badge

Author: Jannchie

README.md

@@ -1,6 +1,7 @@
 # 🚀 TGIT - Tool for Git Interaction Temptation
 
 [![CodeTime Badge](https://shields.jannchie.com/endpoint?style=social&color=222&url=https%3A%2F%2Fapi.codetime.dev%2Fv3%2Fusers%2Fshield%3Fuid%3D2%26project%3Dtgit)](https://codetime.dev)
+[![codecov](https://codecov.io/gh/Jannchie/tgit/graph/badge.svg?token=YQE0LPE7JX)](https://codecov.io/gh/Jannchie/tgit)
 [![PyPI version](https://badge.fury.io/py/tgit.svg)](https://badge.fury.io/py/tgit)
 [![Python 3.11+](https://img.shields.io/badge/python-3.11+-blue.svg)](https://www.python.org/downloads/)
 [![License: MIT](https://img.shields.io/badge/License-MIT-yellow.svg)](https://opensource.org/licenses/MIT)