492 bug place holder not replaced (#528)
492 bug place holder not replaced (#528)

* Fix configuration and added 2 additional parameters.

* Add functionality to render url in email.

* Update add genderization
Update changed name in text

* Fix the config. Exchanged inserted param with diff. version

* Correct placeholder syntax

hpi-swt2/workshop-portal,hpi-swt2/workshop-portal,hpi-schuelerklub/workshop-portal,hpi-schuelerklub/workshop-portal,hpi-swt2/workshop-portal,hpi-schuelerklub/workshop-portal