Closes #21759: URL Typo in Documentation FAQ

Doc/faq/programming.rst

@@ -149,7 +149,7 @@ There is a page on the wiki devoted to `performance tips
 <http://wiki.python.org/moin/PythonSpeed/PerformanceTips>`_.
 
 Guido van Rossum has written up an anecdote related to optimization at
-http://www.python.org/doc/essays/list2str.html.
+http://www.python.org/doc/essays/list2str.
 
 One thing to notice is that function and (especially) method calls are rather
 expensive; if you have designed a purely OO interface with lots of tiny