Update README.md

Author: lor6

README.md

@@ -4,7 +4,7 @@
 This is the main repo for all the sample code used in the scala tutorials.
 
 # Pre-requisites
-Suggested JDK version : JDK 11
+Suggested JDK version : JDK 17
 
 # Compiling and Running Tests
 This repo uses a multi-module build with many sub modules.