Readme update.

README.md

@@ -14,7 +14,9 @@
 [![GitHub release (latest SemVer)](https://img.shields.io/github/v/release/iwatkot/maps4fs)](https://github.com/iwatkot/maps4fs/releases)
 [![Docker Pulls](https://img.shields.io/docker/pulls/iwatkot/maps4fs)](https://hub.docker.com/repository/docker/iwatkot/maps4fs/general)
 [![GitHub issues](https://img.shields.io/github/issues/iwatkot/maps4fs)](https://github.com/iwatkot/maps4fs/issues)
-[![Maintainability](https://api.codeclimate.com/v1/badges/b922fd0a7188d37e61de/maintainability)](https://codeclimate.com/github/iwatkot/maps4fs/maintainability) 
+[![Maintainability](https://api.codeclimate.com/v1/badges/b922fd0a7188d37e61de/maintainability)](https://codeclimate.com/github/iwatkot/maps4fs/maintainability)<br>
+[![Checked with mypy](https://www.mypy-lang.org/static/mypy_badge.svg)](https://mypy-lang.org/)
+[![Build Status](https://github.com/iwatkot/maps4fs/actions/workflows/checks.yml/badge.svg)](https://github.com/iwatkot/maps4fs/actions)
 
 </div>