[TASK] Additional Documentation for #61351

Add documentation for changelog for merged feature
'Add generic data-* attribute' for Fluid ViewHelpers.

Change-Id: Idfa80355b23d98ab6d9bf6b4ec3bed74b3365a7c
Resolves: #61389
Related: #61351
Releases: 6.3
Reviewed-on: http://review.typo3.org/32612
Reviewed-by: Frank Nägler <typo3@naegler.net>
Tested-by: Frank Nägler <typo3@naegler.net>
Reviewed-by: Christian Kuhn <lolli@schwarzbu.ch>
Tested-by: Christian Kuhn <lolli@schwarzbu.ch>