[TASK] Add Doc for swapping out tables

Resolves: #77377
Releases: master
Change-Id: I2f74765bcd4a08f42623d9ebfeefcf70fd908ca3
Reviewed-on: https://review.typo3.org/49342


Tested-by: Bamboo TYPO3com <info@typo3.com>
Reviewed-by: Anja Leichsenring <aleichsenring@ab-softlab.de>
Tested-by: Anja Leichsenring <aleichsenring@ab-softlab.de>
Reviewed-by: Sebastian Bumann <bumann.sebastian@gmail.com>
Tested-by: Sebastian Bumann <bumann.sebastian@gmail.com>
Reviewed-by: Andreas Fernandez <typo3@scripting-base.de>
Tested-by: Andreas Fernandez <typo3@scripting-base.de>