GH-2134: Doc and Javadoc Polishihg

Author: garyrussell

spring-kafka-docs/src/main/asciidoc/whats-new.adoc

@@ -46,7 +46,7 @@ See the note at the end of <<batch-listeners>> for more information.
 
 The `@KafkaListener` annotation now has the `filter` attribute, to override the container factory's `RecordFilterStrategy` for just this listener.
 
-The `@KafkaListener` annotation now the "info" attribute; this is used to populate the new listener container property `listenerInfo`.
+The `@KafkaListener` annotation now has the `info` attribute; this is used to populate the new listener container property `listenerInfo`.
 This is then used to populate a `KafkaHeaders.LISTENER_INFO` header in each record which can be used in `RecordInterceptor`, `RecordFilterStrategy`, or the listener itself.
 See <<li-header>> and <<alc-props,Abstract Listener Container Properties>> for more information.
 

spring-kafka/src/main/java/org/springframework/kafka/annotation/KafkaListener.java

@@ -317,7 +317,7 @@
 	 * listener itself, for any purposes.
 	 * <p>
 	 * SpEL {@code #{...}} and property place holders {@code ${...}} are supported, but it
-	 * must resolve to a String or `byte[]`.
+	 * must resolve to a String or {@code byte[]}.
 	 * <p>
 	 * This header will be stripped out if an outbound record is created with the headers
 	 * from an input record.