Update conferences.md - React Miami (#6557)

Author: michellebakels

src/content/community/conferences.md

@@ -15,6 +15,11 @@ March 22, 2024. In-person in Paris, France + Remote (hybrid)
 
 [Website](https://react.paris/) - [Twitter](https://twitter.com/BeJS_) - [LinkedIn](https://www.linkedin.com/events/7150816372074192900/comments/)
 
+### React Miami 2024 {/*react-miami-2024*/}
+April 19 - 20, 2024. In-person in Miami, FL, USA
+
+[Website](https://reactmiami.com/) - [Twitter](https://twitter.com/ReactMiamiConf)
+
 ### App.js Conf 2024 {/*appjs-conf-2024*/}
 May 22 - 24, 2024. In-person in Kraków, Poland + remote