Update sponsors.md

Author: Hubertus Tummescheit

content/events/american2024/sponsors.md

@@ -1,6 +1,9 @@
 ## Our Sponsor
 
+| | |
+|:-|:-:|
+|Platinum |<img src="modelon.jpg" width=400> |
+
 | | | | |
 |:-|:-:|:-:|:-:|
-|Platinum |<img src="modelon.jpg" width=400> |
-|Gold |<img src="3ds2.jpeg" width=300> |<img src="claytex.jpg" width=300>|esi.jpg|
+|Gold |<img src="3ds2.jpeg" width=250> |<img src="claytex.jpg" width=300>|<img src="esi.jpg" width=300>|