[8.1] docs: duplicate file (#160)

[bmorelli25]

Backport

This will backport the following commits from main to 8.1:

• docs: duplicate file (#160)

Questions ?

Please refer to the Backport tool documentation

[ghost]

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• Start Time: 2022-03-24T22:06:56.174+0000

• Duration: 7 min 2 sec

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Test	Results
Failed	0
Passed	84
Skipped	0
Total	84

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• run elasticsearch-ci/docs : Re-trigger the docs validation. (use unformatted text in the comment!)