Add ZDI reference

Author: jvazquez-r7

modules/exploits/windows/browser/ibm_spss_c1sizer.rb

@@ -47,7 +47,8 @@ def initialize(info={})
 					[ 'CVE', '2012-5946' ],
 					[ 'OSVDB', '92845' ],
 					[ 'BID', '59559' ],
-					[ 'URL', 'http://www-01.ibm.com/support/docview.wss?uid=swg21635476' ]
+					[ 'URL', 'http://www-01.ibm.com/support/docview.wss?uid=swg21635476' ],
+					[ 'URL', 'http://www.zerodayinitiative.com/advisories/ZDI-13-100/' ]
 				],
 			'Payload'        =>
 				{