Add Vercel configuration for domain verification

domains/_vercel.luz.json

@@ -0,0 +1,9 @@
+{
+    "owner": {
+        "username": "samuelluzsantana",
+        "email": "slsamuelluz@gmail.com"
+    },
+    "records": {
+        "TXT": "vc-domain-verify=luz.is-a.dev,def0a4ca0a68cbbc8ac3"
+    }
+}