message: Added reference to Java User Group Ham Hackathon
diff: @@ -141,7 +141,7 @@ where this project was mentioned or used!
  30.11.2018
  #### 2018
  -
  +* [Java User Group Hamburg: Security Hackathon](https://www.meetup.com/jug-hamburg/events/254885956/) by [iteratec](https://www.iteratec.de/)
  * [Playing with OWASP Juice Shop](https://mozilla.or.id/en/space/events/258-playing-with-owasp-juice-shop.html)
  by Mohammad Febri R, [Mozilla Indonesia](https://mozilla.or.id/),
  05.08.2018
  