bpo-38103: fix conflicting labels in the docs. (GH-15906)

(cherry picked from commit 2d8d597bb8f882a7677db5a2739df0e617098634)

Co-authored-by: Ezio Melotti <ezio.melotti@gmail.com>
diff --git a/Doc/distutils/examples.rst b/Doc/distutils/examples.rst
index 4ac552c..44f7083 100644
--- a/Doc/distutils/examples.rst
+++ b/Doc/distutils/examples.rst
@@ -1,8 +1,8 @@
 .. _distutils_examples:
 
-********
-Examples
-********
+******************
+Distutils Examples
+******************
 
 .. include:: ./_setuptools_disclaimer.rst