Update access-control.md

Author: mattqual

src/overview/access-control.md

@@ -38,12 +38,14 @@ package com.business.product {
      */
     public namespace Flexible = "http://business.com/product/flexible";
 }
+
 package com.business.product {
     /**
      * Judgement version control namespace.
      */
     public namespace Judgement = "http://business.com/product/judgement";
 }
+
 package com.business.product {
     /**
      * Pair.