PyPI disables the "raw" directive.

README.rst

@@ -87,9 +87,7 @@ Does that look good?
     <p align="center"><i>Tidelift gives software development teams a single source for purchasing and maintaining their software, with professional grade assurances from the experts who know it best, while seamlessly integrating with existing tools.</i></p>
     <p align="center"><b><i><a href="https://tidelift.com/subscription/pkg/pypi-websockets?utm_source=pypi-websockets&utm_medium=referral&utm_campaign=readme">Get supported websockets with the Tidelift Subscription</a></i></b></p>
     <hr>
-
-(If you contribute to ``websockets`` and would like to become an official
-support provider, `let me know <https://fractalideas.com/>`_.)
+    <p>(If you contribute to ``websockets`` and would like to become an official support provider, <a href="https://fractalideas.com/">let me know</a>.)</p>
 
 Why should I use ``websockets``?
 --------------------------------

setup.py

@@ -1,4 +1,5 @@
 import pathlib
+import re
 import sys
 
 import setuptools
@@ -10,6 +11,14 @@
 
 long_description = (root_dir / 'README.rst').read_text(encoding='utf-8')
 
+# PyPI disables the "raw" directive.
+long_description = re.sub(
+    r"^\.\. raw:: html.*?^(?=\w)",
+    "",
+    long_description,
+    flags=re.DOTALL | re.MULTILINE,
+)
+
 exec((root_dir / 'src' / 'websockets' / 'version.py').read_text(encoding='utf-8'))
 
 py_version = sys.version_info[:2]