Clarify requirements for -parameters and configuration properties

spring-boot-project/spring-boot-docs/src/docs/asciidoc/features/external-config.adoc

@@ -676,6 +676,8 @@ Spring Boot provides an alternative method of working with properties that lets
 
 TIP: See also the <<features#features.external-config.typesafe-configuration-properties.vs-value-annotation,differences between `@Value` and type-safe configuration properties>>.
 
+NOTE: To use type-safe configuration properties the class must be compiled with `-parameters`.
+This will happen automatically if you use Spring Boot's Gradle plugin or if you use Maven and `spring-boot-starter-parent`.
 
 
 [[features.external-config.typesafe-configuration-properties.java-bean-binding]]
@@ -742,9 +744,6 @@ include::code:nonnull/MyProperties[tag=*]
 NOTE: To use constructor binding the class must be enabled using `@EnableConfigurationProperties` or configuration property scanning.
 You cannot use constructor binding with beans that are created by the regular Spring mechanisms (for example `@Component` beans, beans created by using `@Bean` methods or beans loaded by using `@Import`)
 
-NOTE: To use constructor binding in a native image the class must be compiled with `-parameters`.
-This will happen automatically if you use Spring Boot's Gradle plugin or if you use Maven and `spring-boot-starter-parent`.
-
 NOTE: The use of `java.util.Optional` with `@ConfigurationProperties` is not recommended as it is primarily intended for use as a return type.
 As such, it is not well-suited to configuration property injection.
 For consistency with properties of other types, if you do declare an `Optional` property and it has no value, `null` rather than an empty `Optional` will be bound.