Add Vercel configuration for domain verification

domains/_vercel.hassanbukhari.json

@@ -0,0 +1,9 @@
+{
+  "owner": {
+    "username": "TheHassanBukhari",
+    "email": "thehassanbukhari@gmail.com"
+  },
+  "records": {
+    "TXT": "vc-domain-verify=hassanbukhari.is-a.dev,6d9f633b8dcab83de9ec"
+  }
+}