Add intercepting filters uml diagram

Author: mgechev

README.md

@@ -19,6 +19,7 @@
   * [Facade](#facade)
   * [Proxy](#proxy)
   * [Active Record](#active-record)
+  * [Intercepting Filters](#intercepting-filters)
 * [Directives](#directives-1)
   * [Composite](#composite)
   * [Interpreter](#interpreter)
@@ -573,6 +574,10 @@ Since Martin Fowler states that
 
 `$resource` does not implements exactly the Active Record pattern, since it communicates with RESTful service instead of the database. Anyway, we can consider it as "Active Record like RESTful communication".
 
+#### Intercepting Filters
+
+
+
 ### Directives
 
 #### Composite