chore: Update badges (#1558)

Author: fsbraun

README.rst

@@ -2,7 +2,7 @@
 Django Filer
 ============
 
-|pypi| |python| |django| |coverage|
+|PyPiVersion| |TestCoverage| |PyVersion| |DjVersion| |CmsVersion|
 
 **django Filer** is a file management application for django that makes
 handling of files and images a breeze.
@@ -50,11 +50,26 @@ Please head over to the separate `documentation <https://django-filer.readthedoc
 for all the details on how to install, configure and use django-filer.
 
 
-.. |pypi| image:: https://badge.fury.io/py/django-filer.svg
-    :target: http://badge.fury.io/py/django-filer
-.. |coverage| image:: https://codecov.io/gh/django-cms/django-filer/branch/master/graph/badge.svg
+.. |PyPiVersion| image:: https://img.shields.io/pypi/v/django-filer.svg?style=flat-square
+    :target: https://pypi.python.org/pypi/django-filer
+    :alt: Latest PyPI version
+
+.. |PyVersion| image:: https://img.shields.io/pypi/pyversions/django-filer.svg?style=flat-square
+    :target: https://pypi.python.org/pypi/django-filer
+    :alt: Python versions
+
+.. |DjVersion| image:: https://img.shields.io/pypi/frameworkversions/django/django-filer.svg?style=flat-square
+    :target: https://pypi.python.org/pypi/django-filer
+    :alt: Django versions
+
+.. |CmsVersion| image:: https://img.shields.io/pypi/frameworkversions/django-cms/django-filer.svg?style=flat-square
+    :target: https://pypi.python.org/pypi/django-filer
+    :alt: django CMS versions
+
+.. |TestCoverage| image:: https://codecov.io/gh/django-cms/django-filer/graph/badge.svg?token=O64yNt6pgo
     :target: https://codecov.io/gh/django-cms/django-filer
-.. |python| image:: https://img.shields.io/badge/python-3.10+-blue.svg
-    :target: https://pypi.org/project/django-filer/
-.. |django| image:: https://img.shields.io/badge/django-3.2+-blue.svg
-    :target: https://www.djangoproject.com/
+    :alt: Test coverage
+
+.. |License| image:: https://img.shields.io/github/license/django-cms/django-filer.svg?style=flat-square
+   :target: https://pypi.python.org/pypi/django-filer/
+    :alt: License