Improved badges

Author: MarkusH

README.md

@@ -1,9 +1,10 @@
 # django-osm-field
 
-[![No Maintenance Intended](http://unmaintained.tech/badge.svg)](http://unmaintained.tech/)
+[![No Maintenance Intended](https://img.shields.io/badge/No%20Maintenance%20Intended-x-red.svg?style=for-the-badge)](http://unmaintained.tech/)
 ![GitHub Workflow Status (branch)](https://img.shields.io/github/workflow/status/MarkusH/django-osm-field/CI/master?style=for-the-badge)
 ![Codecov branch](https://img.shields.io/codecov/c/gh/MarkusH/django-osm-field/master?style=for-the-badge)
-![PyPI](https://img.shields.io/pypi/v/django-osm-field?style=for-the-badge)
+[![Read the Docs](https://img.shields.io/readthedocs/django-osm-field?style=for-the-badge)](https://django-osm-field.readthedocs.io/en/latest/)
+[![PyPI](https://img.shields.io/pypi/v/django-osm-field?style=for-the-badge)](https://pypi.org/project/django-osm-field/)
 
 An OpenStreetMap field for Django.