Add thanks

slides/content.md

@@ -777,4 +777,14 @@ However do note that both these tunnels might not support the full bandwidth
 
 * ppp for connecting to PPPoE
 * Systemd-networkd for managing connections  
-  (only network manager that supports most ISPs configurations fully)
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+  (only network manager that supports most ISPs configurations fully)
+
+----
+
+## Special Thanks to
+
+* Federico Amedeo Izzo for NAND info
+* Nicolo Izzo for his [original talk](https://slides.poul.org/2017/corsi-linux-avanzati/servers/) and images
+* Davide Depau for help with NFtables and photos
+* Lorenzo Ribis for some photos
+* POuL members in general for being always helpful
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