Add cookie.json with domain owner information

domains/cookie.json

@@ -0,0 +1,9 @@
+{
+    "owner": {
+        "username": "0xCook1e",
+        "email": "cookiectf@gmail.com"
+    },
+    "records": {
+        "CNAME": "0xcook1e.github.io"
+    }
+}