Avoid redundant save

Author: AnghelLeonard

HibernateSpringBootRedundantSave/README.md

@@ -7,4 +7,14 @@
 - for each modification, Hibernate automatically triggers the corresponding `UPDATE` statement without the need to explicitly call the `save()` method
 - behind the scene, this redundancy (calling `save()` when is not necessarily) doesn't affect the number of triggered queries, but it implies a performance penalty in the underlying Hibernate processes
 
-<a href="https://leanpub.com/java-persistence-performance-illustrated-guide"><p align="center"><img src="https://github.com/AnghelLeonard/Hibernate-SpringBoot/blob/master/Java%20Persistence%20Performance%20Illustrated%20Guide.jpg" height="410" width="350"/></p></a>
+-----------------------------------------------------------------------------------------------------------------------    
+<table>
+     <tr><td><b>If you need a deep dive into the performance recipes exposed in this repository then I am sure that you will love my book "Spring Boot Persistence Best Practices"</b></td><td><b>If you need a hand of tips and illustrations of 100+ Java persistence performance issues then "Java Persistence Performance Illustrated Guide" is for you.</b></td></tr>
+     <tr><td>
+<a href="https://www.apress.com/us/book/9781484256251"><p align="left"><img src="https://github.com/AnghelLeonard/Hibernate-SpringBoot/blob/master/Spring%20Boot%20Persistence%20Best%20Practices.jpg" height="500" width="450"/></p></a>
+</td><td>
+<a href="https://leanpub.com/java-persistence-performance-illustrated-guide"><p align="right"><img src="https://github.com/AnghelLeonard/Hibernate-SpringBoot/blob/master/Java%20Persistence%20Performance%20Illustrated%20Guide.jpg" height="500" width="450"/></p></a>
+</td></tr></table>
+
+-----------------------------------------------------------------------------------------------------------------------    
+