Add Vercel domain verification JSON configuration

domains/_vercel.rifqibanusafingi.json

@@ -0,0 +1,9 @@
+{
+    "owner": {
+        "username": "rifqi011",
+        "email": "rifqibanusafingi11@gmail.com"
+    },
+    "records": {
+        "TXT": "vc-domain-verify=rifqibanusafingi.is-a.dev,2cbaac860c6420688d31"
+    }
+}