Update README.md

Author: Mazyod

README.md

@@ -2,6 +2,7 @@
 
 [![PyPI version](https://badge.fury.io/py/lsp-types.svg)](https://badge.fury.io/py/lsp-types)
 [![Python](https://img.shields.io/badge/python-3.11%2B-blue.svg)](https://www.python.org/downloads/)
+[![Tests](https://github.com/Mazyod/lsp-python-types/actions/workflows/python-tests.yml/badge.svg)](https://github.com/Mazyod/lsp-python-types/actions/workflows/python-tests.yml)
 [![License: MIT](https://img.shields.io/badge/License-MIT-yellow.svg)](https://opensource.org/licenses/MIT)
 
 _Publish the excellent work of [Sublime LSP](https://github.com/sublimelsp/lsp-python-types) as a PyPI package._