updating readme

Author: springframeworkguru

README.md

@@ -6,4 +6,6 @@ The application is a simple Spring Boot 2 / Spring Framework 5 web application.
 
 If you would like learn about what's new in Spring Framework 5, click [here](https://springframework.guru/what-is-new-with-spring-framework-5/)
 
+If you'd like to learn more about the cool new reactive types in Spring Framework 5, click [here](https://springframework.guru/spring-web-reactive/)
+
 You can learn about my Spring Framework 5 Online course [here.](https://courses.springframework.guru/p/spring-framework-5-begginer-to-guru)