Doc updates for 2.2.0 clients

Author: garyrussell

src/reference/asciidoc/appendix.adoc

@@ -1,3 +1,5 @@
+////
+#Commented out until 2.3 is released
 [[deps-for-21x]]
 == Override Dependencies to use the 2.1.x kafka-clients with an Embedded Broker
 
@@ -48,6 +50,7 @@ When you use `spring-kafka-test` (version 2.2.x) with the 2.1.x `kafka-clients`
 </dependency>
 ----
 ====
+////
 
 [appendix]
 [[history]]

src/reference/asciidoc/quick-tour.adoc

@@ -33,8 +33,8 @@ compile 'org.springframework.kafka:spring-kafka:{project-version}'
 
 This quick tour works with the following versions:
 
-* Apache Kafka Clients 2.0.0
-* Spring Framework 5.1.x
+* Apache Kafka Clients 2.2.0
+* Spring Framework 5.2.x
 * Minimum Java version: 8
 
 ==== A Very, Very Quick Example

src/reference/asciidoc/whats-new.adoc

@@ -5,7 +5,7 @@ This section covers the changes made from version 2.2 to version 2.3.
 [[kafka-client-2.1]]
 ==== Kafka Client Version
 
-This version requires the 2.1.0 `kafka-clients` or higher.
+This version requires the 2.2.0 `kafka-clients` or higher.
 
 ==== Listener Container Changes