More updates to README

application/credit-card-enrollment-backend-in-java/src/main/java/cloud/ambar/README.md → application/credit-card-enrollment-backend-in-java/README.md

@@ -1,6 +1,8 @@
 This is the java implementation of the backend services for the Ambar course repo. This portion of the application 
 is structured as follows:
 ```
+src/main/java/cloud/....
+
 ambar/
 ├── common/     # Has common components for the java application. Things that are required throughout the application
 │               # such as database setup and access, exceptions, or common base classes such as for events. You can also
@@ -18,5 +20,19 @@ ambar/
     
 ```
 
-For more details on relating these directories and their classes back to CQRS and EventSource see the READMEs found 
-throughout the application.
+For more details on relating these directories and their classes back to CQRS, EventSourcing and our course topics, see 
+the READMEs found throughout the application.
+
+Some more details on the java application...
+This application is built using maven and all of its dependencies, plugins, and build process can be found in the `pom.xml` 
+file.
+
+We leverage Spring Boot + Spring Boot Web as a basis for our application which provide some basic  features around logging,
+configuration, and application lifecycle management. The web portion also simplifies our setup for a web server to host rest
+endpoints to interact with our application and handle the serialization and deserialization of the request response flow.
+
+Spring JPA (Java Persistence API) and Mongo / Postgres dependencies to be able to connect to and leverage MongoDb and 
+PostgreSql for database storage systems for our events and read models.
+
+Finally, lombok is used extensively throughout the codebase to reduce repetitive boilerplate code to help emphasize business 
+logic and reduce distractions.