update: adding tip to spring boot guide for java 17 installation (#4913)

* update: adding tip to spring boot guide for java 17 installation

* pointing users to the JDK dropdown list

* cleaning up extra line

Author: daniCsorbaJB

docs/topics/jvm/jvm-create-project-with-spring-boot.md

@@ -46,6 +46,10 @@ Create a new Spring Boot project with Kotlin by using the Project Wizard in Inte
      {style="note"}
 
    * **Java**: 17
+   
+     > If you don't have Java 17 installed, you can download it from the JDK dropdown list.
+     >
+     {style="tip"}
 
    ![Create Spring Boot project](create-spring-boot-project.png){width=800}