Clarify application.properties example

The syntax was a bit tortured. This should clarify things and also
de-emphasise the "production" use case for the file system
properties file (we want to be cloud native don't we?).

spring-boot-docs/src/main/asciidoc/spring-boot-features.adoc

@@ -329,10 +329,13 @@ To provide a concrete example, suppose you develop a `@Component` that uses a
 	}
 ----
 
-You can bundle an `application.properties` inside your jar that provides a sensible
+On your application classpath (e.g. inside your jar) you can have an
-default `name`. When running in production, an `application.properties` can be provided
+`application.properties` that provides a sensible default property
-outside of your jar that overrides `name`; and for one-off testing, you can launch with
+value for `name`. When running in a new environment, an
-a specific command line switch (e.g. `java -jar app.jar --name="Spring"`).
+`application.properties` can be provided outside of your jar that
+overrides the `name`; and for one-off testing, you can launch with a
+specific command line switch (e.g. `java -jar app.jar
+--name="Spring"`).
 
 [TIP]
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