[issue41997] Docs Standard Library index page has incorrect version in title

[issue41997] Docs Standard Library index page has incorrect version in title

New submission from Patrick Reader : The documentation page for the Standard Library, https://docs.python.org/3/library/, still says "Python 3.8.6 documentation" in the title. When visiting https://docs.python.org/3.9/library/ (emphasis on the 3.9) explicitly, the correct title is shown. I su