Update index.md

Author: jason-fox

docs/index.md

@@ -22,6 +22,8 @@ This is a collection of **NGSI-v2** tutorials for the FIWARE system. Each tutori
 demonstrate the correct use of individual FIWARE components and shows the flow of context data within a simple Smart
 Solution either by connecting to a series of dummy IoT devices or manipulating the context directly or programmatically.
 
+<a href="https://www.fiware.org/global-summit/"><img src="https://fiware.github.io//catalogue/img/Summit25.png" width="240" height="70" /></a>
+
 <!--- GLOBAL SUMMIT BANNER AD /->
 
 <a href="https://www.fiware.org/global-summit/"><img src="https://fiware.github.io//catalogue/img/Summit24.png" width="240" height="70" /></a> <a href="https://www.eventbrite.de/e/fiware-tech-training-naples-tickets-920143322447"><img src="https://fiware.github.io//catalogue/img/Training24.png" width="240" height="70" /></a>