Fix failing build.

ZeroIntensity · ZeroIntensity · commit 279b1620ac9d · 2025-09-17T07:03:31.000-04:00
diff --git a/peps/pep-0788.rst b/peps/pep-0788.rst
@@ -963,7 +963,7 @@ Open Issues
 ===========
 
 How Should the APIs Fail?
-*************************
+-------------------------
 
 There is a bit of disagreement on how the ``PyInterpreter[Weak]Ref`` APIs
 should indicate a failure to the caller. There are two competing ideas:
