Add Vercel verification record to urjit.json

Added Vercel verification TXT record to the JSON configuration.

domains/urjit.json

@@ -1,11 +1,12 @@
 {
-  "description": "Urjit Upadhyay — Flutter & MERN Developer Portfolio",
-  "repo": "https://github.com/urjitupadhya/Urjit_Upadhyay_Portfolio_UPDATED",
   "owner": {
     "username": "urjitupadhya",
     "email": "gm4175urjitupadhyay@gmail.com"
   },
   "records": {
-    "CNAME": "cname.vercel-dns.com"
+    "CNAME": "cname.vercel-dns.com",
+    "_vercel": {
+      "TXT": "vc-domain-verify=www.urjit.is-a.dev,2483d9672d32253c49a9"
+    }
   }
 }