Add Vercel configuration for domain verification

domains/_vercel.muis.json

@@ -0,0 +1,9 @@
+{
+    "owner": {
+        "username": "Charmingdc",
+        "email": "charmingdc002@gmail.com"
+    },
+    "records": {
+        "TXT": "vc-domain-verify=muis.is-a.dev,13992e47b6277d63b32c"
+    }
+}