Add Vercel domain verification JSON configuration

domains/_vercel.iarasuster.json

@@ -0,0 +1,9 @@
+{
+  "owner": {
+    "username": "iarasuster",
+    "email": "iarasuster@gmail.com"
+  },
+  "record": {
+    "TXT": "vc-domain-verify=iarasuster.is-a.dev,1188b0d9e3c3ebe87a1e"
+  }
+}