Add Vercel configuration for bitto domain

domains/_vercel.bitto.json

@@ -0,0 +1,9 @@
+{
+    "owner": {
+        "username": "biittosaha",
+        "email": "bittosaaha@gmail.com"
+    },
+    "records": {
+        "TXT": ["vc-domain-verify=bitto.is-a.dev,b17e084d8c4fb21bb907"]
+    }
+}