Update README.md with twitter link (#5678)

Author: Olexandr88

README.md

@@ -10,6 +10,7 @@
 [![Documentation](https://img.shields.io/badge/Documentation%20-Introduction%20-%20%23007ec6)](https://reflex.dev/docs/getting-started/introduction)
 [![PyPI Downloads](https://static.pepy.tech/badge/reflex)](https://pepy.tech/projects/reflex)
 [![Discord](https://img.shields.io/discord/1029853095527727165?color=%237289da&label=Discord)](https://discord.gg/T5WSbC2YtQ)
+[![Twitter](https://img.shields.io/twitter/follow/getreflex)](https://x.com/getreflex)
 
 </div>