[TASK] Followup: Remove TYPO3 Upload Limit

Extend the breaking documentation.

Related: #71110
Releases: master
Change-Id: Ibfd60f4913748fe156260172ac61c1e0916d3177
Reviewed-on: https://review.typo3.org/44556


Reviewed-by: Stephan Großberndt <stephan@grossberndt.de>
Reviewed-by: Daniel Goerz <ervaude@gmail.com>
Tested-by: Daniel Goerz <ervaude@gmail.com>
Reviewed-by: Philipp Gampe <philipp.gampe@typo3.org>
Tested-by: Philipp Gampe <philipp.gampe@typo3.org>