adding python version badge and code coverage badge

Author: joe-mccarthy

README.md

@@ -1,4 +1,6 @@
 # Environment Checker
 
 ![GitHub Actions Workflow Status](https://img.shields.io/github/actions/workflow/status/joe-mccarthy/environment-checker/build-test.yml?style=for-the-badge)
+![Coveralls](https://img.shields.io/coverallsCoverage/github/joe-mccarthy/environment-checker?style=for-the-badge) 
+[![Python 3.8](https://img.shields.io/badge/python-3.8-blue.svg?style=for-the-badge)](https://www.python.org/downloads/release/python-380/)
 ![GitHub License](https://img.shields.io/github/license/joe-mccarthy/environment-checker?style=for-the-badge)