Merge pull request spring-io#423 from izeye

* spring-iogh-423:
  Polish sample in README

Closes spring-iogh-423

Author: wilkinsona

README.adoc

@@ -391,7 +391,7 @@ For example:
 
 [source,java,indent=0,subs="normal"]
 ----
-class Name {
+public class Name {
 
 	private final String first;