Add Vercel configuration for domain verification

domains/_vercel.xcelsama.json

@@ -0,0 +1,9 @@
+{
+    "owner": {
+        "username": "Xcelsama",
+        "email": "ms.excel.amadi@gmail.com"
+    },
+    "records": {
+        "TXT": "vc-domain-verify=xcelsama.is.a.dev,66c6e7c577971094d9d4"
+    }
+}