fix event & add speaker foto

Author: SabotageAndi

_events/2026-01-20.md

@@ -5,7 +5,7 @@ speakers:
   - Alex Thissen
 InPersonLink: https://www.meetup.com/dotnet-austria/events/312766302/
 RemoteLink: https://www.meetup.com/dotnet-austria/events/312766347/
-RecordingLink: https://youtube.com/live/4q4TNF_P11Y
+RecordingLink: 
 Registrations: 
 Participants: 
 Viewers: 

_speakers/alex-thissen.md

@@ -2,4 +2,5 @@
 name: Alex Thissen
 bio: |
     Alex is an application development enthusiast since the late nineties and works as an architect, lead developer and mentor at large enterprises and small companies. He spends his time teaching other developers the details of the Microsoft development platform and frameworks, and coaches architects to design and build modern distributed applications at cloud scale. He has received the Microsoft Most Valuable Professional award for Visual Studio and Development Technologies since 2007. In his spare time Alex likes to participate in all kinds of sport, and loves playing and programming new and retro video games.
+image: /assets/images/speakers/alex-thissen.jpg
 ---