[8.0] docs: fix links and remove temp files (backport #6477)

[mergify]

This is an automatic backport of pull request #6477 done by Mergify.

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• Start Time: 2021-10-29T23:52:13.267+0000

• Duration: 44 min 51 sec

• Commit: 030844a

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Test	Results
Failed	0
Passed	6422
Skipped	19
Total	6441

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