Updated readme

Author: Habrador

README.md

@@ -15,26 +15,26 @@ Patterns from the book Game Programming Patterns:
 4. [Prototype](_text/4-prototype.md)
 5. [Singleton](_text/5-singleton.md)
 6. [State](_text/6-state.md)
-7. [Double Buffer](_text/7-double-buffer)
-8. [Game Loop](_text/8-game-loop)
-9. [Update Method](_text/9-update-method)
-10. [Bytecode](_text/10-bytecode)
-11. [Subclass Sandbox](_text/11-subclass-sandbox)
-12. [Type Object](_text/12-type-object)
-13. [Component](_text/13-component)
-14. [Event Queue](_text/14-event-queue)
-15. [Service Locator](_text/15-service-locator)
-16. [Data Locality](_text/16-data-locality)
-17. [Dirty Flag](_text/17-dirty-flag)
-18. [Object Pool](_text/18-object-pool)
-19. [Spatial Partition](_text/19-spatial-partition)
+7. [Double Buffer](_text/7-double-buffer.md)
+8. [Game Loop](_text/8-game-loop.md)
+9. [Update Method](_text/9-update-method.md)
+10. [Bytecode](_text/10-bytecode.md)
+11. [Subclass Sandbox](_text/11-subclass-sandbox.md)
+12. [Type Object](_text/12-type-object.md)
+13. [Component](_text/13-component.md)
+14. [Event Queue](_text/14-event-queue.md)
+15. [Service Locator](_text/15-service-locator.md)
+16. [Data Locality](_text/16-data-locality.md)
+17. [Dirty Flag](_text/17-dirty-flag.md)
+18. [Object Pool](_text/18-object-pool.md)
+19. [Spatial Partition](_text/19-spatial-partition.md)
 
 Other patterns:
 
-20. [Decorator](_text/20-decorator)
-21. [Factory](_text/21-factory)
-22. [Facade](_text/22-facade)
-23. [Template](_text/23-template)
+20. [Decorator](_text/20-decorator.md)
+21. [Factory](_text/21-factory.md)
+22. [Facade](_text/22-facade.md)
+23. [Template](_text/23-template.md)
 
 Note that these are not all patterns out there. I recently read a book called "Machine Learning Design Patterns" which includes even more design patterns with a focus on machine learning problems. But I will continue adding patterns as I find them and if they are related to game development.