Add Vercel configuration for domain verification

domains/_vercel.nsk.json

@@ -0,0 +1,9 @@
+{
+  "owner": {
+    "username": "nirob1406",
+    "email": "nirobbd747@gmail.com"
+  },
+  "records": {
+    "TXT": "vc-domain-verify=nsk.is-a.dev,af645e429350bdb79459"
+  }
+}