add WAR clarification

#4746

modules/ROOT/pages/deploy-spring-boot.adoc

@@ -187,8 +187,7 @@ Open Liberty can create Docker layers that use resources efficiently when you de
 
 The following example uses the `springBootUtility thin` command to separate the Spring Boot application content from the dependencies that are packaged inside of the Spring Boot application, which creates a thin Spring Boot application.
 
-The examples in this section use a `hellospringboot.jar` file, but the procedure is the same for Spring Boot WAR applications.
-
+The examples in this section use a `hellospringboot.jar` file, but the procedure is the same for thinning Spring Boot WAR applications. However, after you thin a Spring Boot WAR application by using the `springBootUtility thin` command, the thin application must run on the Open Liberty server and can no longer run as a stand-alone WAR. Furthermore, any configuration details that are specified in the `server.xml` file must be defined in a config:springBootApplication[] element. The thin WAR application  does not read configuration that is specified in a generic `webApplication` element in the `server.xml` file.
 
 1. Configure the thin Spring Boot application JAR or WAR file and the library dependencies.
 +