Add doc badges, link action badge

Author: masklinn

README.rst

@@ -8,8 +8,13 @@ Build Status
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 .. image:: https://github.com/ua-parser/uap-python/actions/workflows/ci.yml/badge.svg
+   :target: https://github.com/ua-parser/uap-python/actions/workflows/ci.yml?query=branch%3Amaster
    :alt: CI on the master branch
 
+.. image:: https://readthedocs.org/projects/uap-python/badge/?version=latest
+   :target: https://readthedocs.org/project/uap-python/en/latest/
+   :alt: Documentation Status
+
 Installing
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