Update README.md

Author: afawcett

README.md

@@ -42,6 +42,7 @@ Documentation
 
 I'm proud to have been given the opportunity to run a more detailed look at these patterns on developer.force.com. 
 
+- [Great Contributions to Apex Enterprise Patterns](http://andyinthecloud.com/2015/07/25/great-contributions-to-apex-enterprise-patterns/)
 - [Unit Testing, Apex Enterprise Patterns and ApexMocks – Part 1](http://andyinthecloud.com/2015/03/22/unit-testing-with-apex-enterprise-patterns-and-apexmocks-part-1/)
 - [Unit Testing, Apex Enterprise Patterns and ApexMocks – Part 2](http://andyinthecloud.com/2015/03/29/unit-testing-apex-enterprise-patterns-and-apexmocks-part-2/)
 - [Apex Enterprise Patterns - Separation of Concerns](http://wiki.developerforce.com/page/Apex_Enterprise_Patterns_-_Separation_of_Concerns)