Update system.json

Author: Tim L. White

system.json

@@ -7,6 +7,7 @@
   "compatibleCoreVersion": "0.7.2",
   "templateVersion": 2,
   "author": "Tim L. White",
+  "contributors": { "name" : "Steve Barnett", "email" : "[email protected]" }
   "esmodules": [
     "module/dcc.js"
   ],
@@ -28,6 +29,6 @@
   "initiative": "1d20 + @attributes.init.value",
   "url": "https://github.com/cyface/foundryvtt-dcc",
   "manifest": "https://github.com/cyface/foundryvtt-dcc/raw/master/system.json",
-  "download": "https://github.com/cyface/foundryvtt-dcc/archive/v0.0.11.zip",
+  "download": "https://github.com/cyface/foundryvtt-dcc/archive/v0.0.12.zip",
   "license": "LICENSE.txt"
 }