Add Vercel domain verification JSON configuration

domains/_vercel.arj.json

@@ -0,0 +1,9 @@
+{
+    "owner": {
+        "username": "imarjunyadav",
+        "email": "arjunyadav9434@gmail.com"
+    },
+    "records": {
+        "TXT": ["vc-domain-verify=arj.is-a.dev,10ed4a2a371933f24fec"]
+    }
+}