Add badges to README.md

Author: Secrus

README.md

@@ -1,3 +1,6 @@
 # Crashtest
 
+[![Tests](https://github.com/sdispater/crashtest/actions/workflows/tests.yml/badge.svg)](https://github.com/sdispater/crashtest/actions/workflows/tests.yml)
+[![PyPI version](https://img.shields.io/pypi/v/crashtest)](https://pypi.org/project/crashtest/)
+
 Crashtest is a Python library that makes exceptions handling and inspection easier.