Add vercel.usman-subhani.json for domain configuration

domains/vercel.usman-subhani.json

@@ -0,0 +1,9 @@
+{
+  "owner": {
+    "username": "Usman1subhani",
+    "email": "usmansubhani595@gmail.com"
+  },
+  "records": {
+    "TXT": "vc-domain-verify=usman-subhani.is-a.dev,bb3418bf130badb86563"
+  }
+}