[docs] [issue35434] Wrong bpo linked in What's New in 3.8

[Yash Aggarwal]

Change by Yash Aggarwal <aggarwal.yash2011 at gmail.com>:


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pull_requests: +10809, 10810

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Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue35434>
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