[BUGFIX] Broken links to online TSconfig in two language labels

Old links pointing to http://typo3.org/documentation/ should be updated
and point to the official TYPO3 documentation.

Fixes: #28808
Releases: 6.2
Change-Id: Id9943b23e5811bc2f00182111fed98cd17541fd6
Reviewed-on: https://review.typo3.org/26932
Reviewed-by: Markus Klein
Tested-by: Markus Klein
Reviewed-by: Wouter Wolters
Tested-by: Wouter Wolters