Add Vercel configuration for domain verification

domains/_vercel.fausto.json

@@ -0,0 +1,9 @@
+{
+  "owner": {
+    "username": "tatitoxt",
+    "email": "tatitofau@gmail.com"
+  },
+  "records": {
+    "TXT": "vc-domain-verify=fausto.is-a.dev,257fb4dc88e8fc319315"
+  }
+}