WalT-in-pictures.md

-### The WalT-based testbed at Schneider Electric
+### A WalT testbed made of 22 rpi 4B boards at Schneider Electric (2024-)
 
-![WalT-based testbed at Schneider Electric](uploads/c07983aae793c9ba27c528f8078a90d4/IMG_3605.jpeg)
+![WalT-based testbed made of 22 rpi 4B boards at Schneider Electric](uploads/f74519501132c20c6edcd76f20e85d9c/IMG_7449.jpeg)
+
+### A WalT testbed made of 100 rpi 3B boards at Schneider Electric (2019-)
+
+![WalT-based testbed made of 100 rpi 3B boards at Schneider Electric](uploads/c07983aae793c9ba27c528f8078a90d4/IMG_3605.jpeg)
 
 ### A node on a wall plug at LIG (IMAG building)