Add picture and tweak mine (Janniks) bio

Author: J12934

src/assets/Markdown Files/userday.md

@@ -72,10 +72,16 @@ Previously, Francesco headed HSBC’s application and cloud security and was Sen
 [Press](https://www.nsc42.co.uk/press)
 
 ## Bio Jannik
-Jannik Hollenbach is a Software Security Engineer at iteratec GmbH, working on and with open source security testing tools to continuously detect security vulnerabilities in the companies software and systems. He is also a member of the OWASP secureCodeBox & OWASP Juice Shop project team.
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+![Jannik Hollenbach](/assets/images/userday/Jannik.jpg)
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+Jannik Hollenbach is a Software Security Engineer at iteratec GmbH, working on and with open source security testing tools to continuously detect security vulnerabilities in the companies software and systems.
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+He is also a member of the OWASP secureCodeBox & OWASP Juice Shop project teams.
 
 **References**
 [Github](https://github.com/J12934)
+[Mastadon](https://infosec.exchange/@jannik)
 [iteratec](https://www.iteratec.com/en/)
 
 ## Bio Timo