Update HetrickCV.json

manifests/HetrickCV.json

@@ -1,9 +1,10 @@
 {
   "name": "HetrickCV",
   "author": "Michael Hetrick",
+  "license": "CC0-1.0",
   "manualUrl": "https://github.com/mhetrick/hetrickcv/blob/master/README.md",
   "sourceUrl": "https://github.com/mhetrick/hetrickcv",
   "donateUrl": "https://paypal.me/MHetrick",
   "latestVersion": "0.6.0",
   "status": "available"
-}
+}