Add Vercel annotations for domain verification

domains/_vercel.annotations

@@ -0,0 +1,9 @@
+{
+    "owner": {
+        "username": "abriciof",
+        "email": "fabricio15.guimaraes@gmail.com"
+    },
+    "records": {
+        "TXT": "vc-domain-verify=www.annotations.is-a.dev,aae0ac67c5b56e59f3c6"
+    }
+}