docs: update stale Sphinx link in contributing guide

joshua-51 · nateprewitt · commit f64a0d782b2a · 2026-05-07T16:27:46.000-06:00
diff --git a/docs/dev/contributing.rst b/docs/dev/contributing.rst
@@ -133,7 +133,7 @@ When presenting Python code, use single-quoted strings (``'hello'`` instead of
 ``"hello"``).
 
 .. _reStructuredText: http://docutils.sourceforge.net/rst.html
-.. _Sphinx: http://sphinx-doc.org/index.html
+.. _Sphinx: https://www.sphinx-doc.org/en/master/
 
 
 .. _bug-reports:
