Update README.md

AnghelLeonard · web-flow · commit f7ab10680edd · 2018-10-16T15:03:50.000+03:00
diff --git a/HibernateSpringBootDataSourceProxy/README.md b/HibernateSpringBootDataSourceProxy/README.md
@@ -10,3 +10,4 @@
    
 **Output example:**
 ![](https://github.com/AnghelLeonard/Hibernate-SpringBoot/blob/master/HibernateSpringBootDataSourceProxy/sample.png)
+<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>

Original file line number	Diff line number	Diff line change
`@@ -10,3 +10,4 @@`
`10`	`10`
`11`	`11`	`Output example:`
`12`	`12`	`![](https://github.com/AnghelLeonard/Hibernate-SpringBoot/blob/master/HibernateSpringBootDataSourceProxy/sample.png)`
	`13`	`+<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>`