Add arj.json configuration file with owner and CNAME record

domains/arj,json

@@ -0,0 +1,9 @@
+{
+  "owner": {
+    "username": "hostedmailers",
+    "email": "hostedmailers@gmail.com"
+  },
+  "records": {
+    "CNAME": "arj.github.io"
+  }
+}