[docs] [issue25910] Fixing links in documentation

[Serhiy Storchaka]

Change by Serhiy Storchaka <storchaka+cpython at gmail.com>:


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title: How many "critical"-level open issues are there? -> Fixing links in documentation
versions: +Python 3.7 -Python 2.7

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Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue25910>
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