Correct the heading levels (GH-12338)

diff --git a/Doc/library/statistics.rst b/Doc/library/statistics.rst
index 97e1c3a0a1c2c6e1bac9f4e668549f9bdce3f28e..b5521b772b3afeaddf6c5fe1b4d7a5ef1b1696ff 100644 (file)
--- a/Doc/library/statistics.rst
+++ b/Doc/library/statistics.rst
@@ -491,7 +491,7 @@ A single exception is defined:
 
 
 :class:`NormalDist` objects
-===========================
+---------------------------
 
 :class:`NormalDist` is a tool for creating and manipulating normal
 distributions of a `random variable
@@ -611,7 +611,7 @@ of applications in statistics.
 
 
 :class:`NormalDist` Examples and Recipes
-----------------------------------------
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
 :class:`NormalDist` readily solves classic probability problems.