Add Vercel configuration for domain verification

domains/_vercel.kishon.json

@@ -0,0 +1,9 @@
+{
+  "owner": {
+    "username": "kishon45229",
+    "email": "kishon45229@outlook.com"
+  },
+  "records": {
+    "TXT": "vc-domain-verify=kishon.is-a.dev,d902f98cc80adbef7e04"
+  },
+}