Added _vercel.json file and subdomain.json file

domains/_vercel.adiii3692.json

@@ -0,0 +1,9 @@
+{
+    "owner": {
+        "username": "adiii3692",
+        "email": "adinair0206@gmail.com"
+    },
+    "record": {
+        "TXT": "vc-domain-verify=adiii3692.is-a.dev,be704332b1928225a1ce"
+    }
+}

domains/adiii3692.json

@@ -0,0 +1,9 @@
+{
+    "owner": {
+        "username": "adiii3692",
+        "email": "adinair0206@gmail.com"
+    },
+    "record": {
+        "CNAME": "portfolio-rho-sand-13.vercel.app"
+    }
+}