Update README.md

Author: kyle-ssg

README.md

@@ -101,6 +101,8 @@ A list of the flags and remote config we're currently using in production can be
 
 [Website](https://bullet-train.io)
 
+[Product Roadmap](https://product-hub.io/roadmap/5d81f2406180537538d99f28)
+
 [Documentation](https://docs.bullet-train.io/)
 
 [Code Examples](https://github.com/BulletTrainHQ/bullet-train-docs)