[TASK] Updated Examples for Usage

[TASK] Updated Examples for Usage

Added default and inline usage for the optional attribute "allowedTags"

Maybe you have to think about the name, cause in
http://php.net/manual/de/function.strip-tags.php the second parameter is
called "allowableTags", and not "allowedTags" This can lead to a quick
overlooked error ;)

Releases: master
Resolves: #82912
Change-Id: Icc3cab9a931790e621f5593ea487c9b23b779e30
Reviewed-on: https://review.typo3.org/54546
Tested-by: TYPO3com <no-reply@typo3.com>
Reviewed-by: Susanne Moog <susanne.moog@typo3.org>
Reviewed-by: Morton Jonuschat <m.jonuschat@mojocode.de>
Tested-by: Morton Jonuschat <m.jonuschat@mojocode.de>
Reviewed-by: Jigal van Hemert <jigal.van.hemert@typo3.org>
Tested-by: Jigal van Hemert <jigal.van.hemert@typo3.org>