Juelich-Challenges-Hackathon.md

@@ -74,6 +74,7 @@ The Juelich Challenges is a JULAIN initiative for 2 years now. It is recognized
 <img src="https://gitlab.version.fz-juelich.de/MLDL_FZJ/MLDL_FZJ_Wiki/raw/master/files/21-03-16-JuelichChallenges_Hackathon/map_participants.png" width="800">   
 
 ### A virtual group picture from the Welcome session
+<p align="center">
 <img src="https://gitlab.version.fz-juelich.de/MLDL_FZJ/MLDL_FZJ_Wiki/raw/master/files/21-03-16-JuelichChallenges_Hackathon/group_picture1.png" width="800">  
 
 <img src="https://gitlab.version.fz-juelich.de/MLDL_FZJ/MLDL_FZJ_Wiki/raw/master/files/21-03-16-JuelichChallenges_Hackathon/group_picture2.png" width="800">  
@@ -89,7 +90,7 @@ The Juelich Challenges is a JULAIN initiative for 2 years now. It is recognized
 
 <img src="https://gitlab.version.fz-juelich.de/MLDL_FZJ/MLDL_FZJ_Wiki/raw/master/files/21-03-16-JuelichChallenges_Hackathon/gather_auditorium.png" height="400">  
 
-
+</p>
 
 
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