Update README.md to reference Spring Boot 4 course

Author: darbyluv2code

README.md

@@ -2,7 +2,13 @@
 
 ![Build Status](https://github.com/darbyluv2code/spring-boot-3-spring-6-hibernate-for-beginners/actions/workflows/build.yml/badge.svg)
 
-Source code for the course: [Spring Boot 3, Spring 6 and Hibernate for Beginners](http://www.luv2code.com/spring-github)
+---
+
+**NOTE**: An updated version of the course is available baed on **Spring Boot 4**:
+- Udemy Course Link [Spring Boot 4, Spring 7 and Hibernate for Beginners](http://www.luv2code.com/spring-github)
+- New Git Repo link: [Spring Boot 4, Spring 7 and Hibernate for Beginners](https://github.com/darbyluv2code/spring-boot-4-spring-7-hibernate-for-beginners)
+
+---
 
 If you have questions or need tech support, post your questions to the [classroom discussion forum](https://www.udemy.com/spring-hibernate-tutorial/learn/v4/questions).
 
@@ -72,4 +78,4 @@ You may not:
 
 See the [LICENSE](./LICENSE) file for full terms and restrictions. 
 
-For permission requests, contact **copyright@luv2code.com**
+For permission requests, contact **copyright@luv2code.com**