Polish "Document `@EmbeddedKafka` and its interaction with Spring Boot"

See gh-15834

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

@@ -6286,13 +6286,13 @@ explicitly supports.
 [[boot-features-embedded-kafka]]
 ==== Testing with Embedded Kafka
 Spring for Apache Kafka provides a convenient way to test projects with an embedded Apache Kafka
-broker. This feature is available via an `@EmbeddedKafka` test class level annotation from the
-`spring-kafka-test` dependency. See more information in the Spring for Apache Kafka
+broker. To use this feature, annotate a test class with `@EmbeddedKafka` from the `spring-kafka-test`
+module. For more information, please see the Spring for Apache Kafka
 https://docs.spring.io/spring-kafka/docs/current/reference/html/#embedded-kafka-annotation[reference manual].
 
-To make Spring Boot auto-configuration work with the mentioned embedded Apache Kafka broker, you need
+To make Spring Boot auto-configuration work with the aforementioned embedded Apache Kafka broker, you need
 to remap a system property for embedded broker addresses (populated by the `EmbeddedKafkaBroker`)
-into Spring Boot configuration property for Apache Kafka. There are several ways to do that:
+into the Spring Boot configuration property for Apache Kafka. There are several ways to do that:
 
 * Provide a system property to map embedded broker addresses into `spring.kafka.bootstrap-servers` in the test class:
 
@@ -6303,7 +6303,7 @@ static {
 }
 ----
 
-* Configuring a property name on the `@EmbeddedKafka` annotation:
+* Configure a property name on the `@EmbeddedKafka` annotation:
 
 [source,java,indent=0]
 ----
@@ -6311,7 +6311,7 @@ static {
         bootstrapServersProperty = "spring.kafka.bootstrap-servers")
 ----
 
-* Via placeholders in configuration properties:
+* Use a placeholder in configuration properties:
 
 [source,properties,indent=0]
 ----
@@ -6319,6 +6319,7 @@ spring.kafka.bootstrap-servers=${spring.embedded.kafka.brokers}
 ----
 
 
+
 [[boot-features-resttemplate]]
 == Calling REST Services with `RestTemplate`
 If you need to call remote REST services from your application, you can use the Spring