Update README

Author: gregturn

README.adoc

@@ -2,6 +2,8 @@ image::http://blog.greglturnquist.com/wp-content/uploads/2014/11/3021OS_mockupco
 
 This is a standing repo of the code for http://blog.greglturnquist.com/category/learning-spring-boot[_Learning Spring Boot_]. While the book explains how to use the gradle wrapper, the code here already has the gradle wrapper set up. That means that for http://gradle.org/[gradle-based] apps, you can immediately run them assuming you have Java installed on your box.
 
+NOTE: Some bits of the code have had significant improvement, such as chapter 3's usage of JMS APIs added to Spring Framework 4.1. Also, I have updated all the code to now use `@SpringBootApplication` instead of `@EnableAutoConfiguration`, etc. So, some bits of the book are obsolete in their explanations. But in total, the code is robust and the concepts still solid.
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 CAUTION: No have Java? I suggest you download and install http://www.oracle.com/technetwork/java/javase/downloads/jdk8-downloads-2133151.html[Java 8 Development Kit (JDK)]. The book is based on using Java 8 to build and run everything.
 
 While not evident when you read the book, each chapter has a progressive approach regarding code. At various phases through each chapter, new features are added. To snapshot that, I create a separate app (using numbering) in the relevant chapter. To see the final version of the app, simply jump to the last app.
@@ -13,5 +15,3 @@ It may sound presumptuous, but I have high confidence in the fidelity of the cod
 NOTE: This code has been update using the latest stable version of Spring Boot 1.2. To see the original code printed in the book, please visit https://github.com/learning-spring-boot/learning-spring-boot-code. I intend to keep this up-to-date, and then release another repo when Spring Boot 1.3 becomes stable.
 
 Stay tuned. In the meantime, http://www.urbandictionary.com/define.php?term=share%20and%20enjoy[share and enjoy]!
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-NOTE: I recently added a LICENSE file to note that ALL code for this book is released under the Apache License. Feel free to read the details.