Add Vercel configuration for domain verification

domains/_vercel.lorenzo.signorelli.json

@@ -0,0 +1,9 @@
+{
+    "owner": {
+        "username": "SignorelliLorenzo",
+        "email": "signorelli.lorenzo.business@gmail.com"
+    },
+    "records": {
+        "TXT": "vc-domain-verify=lorenzo.signorelli.is-a.dev,36eb3e305bb37d54317a"
+    }
+}