Add Vercel configuration for domain verification

domains/_vercel.antonykurniawan.json

@@ -0,0 +1,9 @@
+{
+    "owner": {
+        "username": "VoinzzZ",
+        "email": "antonynugroho467@gmail.com"
+    },
+    "records": {
+        "TXT": "vc-domain-verify=antonykurniawan.is-a.dev,e1fad40dda6f0afeda81"
+    }
+}