add upcoming conferences (#6573)

Author: lero62

src/content/community/conferences.md

@@ -10,6 +10,11 @@ Do you know of a local React.js conference? Add it here! (Please keep the list c
 
 ## Upcoming Conferences {/*upcoming-conferences*/}
 
+### React Summit 2024 {/*react-summit-2024*/}
+June 14 & 18, 2024. In-person in Amsterdam, Netherlands + remote (hybrid event)
+
+[Website](https://reactsummit.com/) - [Twitter](https://twitter.com/reactsummit) - [Videos](https://portal.gitnation.org/)
+
 ### React Paris 2024 {/*react-paris-2024*/}
 March 22, 2024. In-person in Paris, France + Remote (hybrid)