Update README.md

Author: MichelLeBon

spring-all/README.md

@@ -8,3 +8,4 @@ This project is used to replicate Spring Exceptions only.
 ### Relevant articles: 
 - [Properties with Spring](http://www.baeldung.com/2012/02/06/properties-with-spring) - checkout the `org.baeldung.properties` package for all scenarios of properties injection and usage
 - [Spring Profiles](http://www.baeldung.com/spring-profiles)
+- [A Spring Custom Annotation for a Better DAO](http://www.baeldung.com/spring-annotation-bean-pre-processor)