Fix main docs location (#3412)

Author: pquentin

README.md

@@ -12,7 +12,7 @@
 <br/>
   <a href="https://github.com/elastic/elasticsearch-py/actions/workflows/ci.yml?query=workflow%3ACI"><img alt="Build Status on GitHub" src="https://github.com/elastic/elasticsearch-py/workflows/CI/badge.svg" /></a>
   <a href="https://buildkite.com/elastic/elasticsearch-py-integration-tests"><img alt="Buildkite Status on Buildkite" src="https://badge.buildkite.com/68e22afcb2ea8f6dcc20834e3a5b5ab4431beee33d3bd751f3.svg?branch=main" /></a>
-  <a href="https://elasticsearch-py.readthedocs.io"><img alt="Documentation Status" src="https://readthedocs.org/projects/elasticsearch-py/badge/?version=latest" /></a><br>
+  <a href="https://www.elastic.co/docs/reference/elasticsearch/clients/python"><img alt="Documentation Status" src="https://readthedocs.org/projects/elasticsearch-py/badge/?version=latest" /></a><br>
 </p>
 
 *The official Python client for Elasticsearch.*