Add badges

README.rst

@@ -9,16 +9,16 @@ your application.
     :target: https://github.com/pallets-eco/flask-session/actions/workflows/test.yaml?query=workflow%3ACI+branch%3Adeveloment
     :alt: Tests
 
-.. image:: https://readthedocs.org/projects/flask-session/badge/?version=stable&style=flat
-    :target: https://flask-session.readthedocs.io/en/stable/
+.. image:: https://readthedocs.org/projects/flask-session/badge/?version=latest&style=social
+    :target: https://flask-session.readthedocs.io
     :alt: docs
 
 .. image:: https://img.shields.io/badge/License-BSD%203--Clause-blue.svg
     :target: ./LICENSE
     :alt: BSD-3 Clause License
 
 .. image:: https://badge.fury.io/py/flask-session.svg
-    :target: https://pypi.org/project/flask-session/
+    :target: https://pypi.org/project/flask-session
     :alt: pypi
 
 .. image:: https://img.shields.io/github/v/release/pallets-eco/flask-session?include_prereleases&label=latest-prerelease