add kayon.is-a.dev for personal blog

domains/kayon.json

@@ -0,0 +1,9 @@
+{
+  "owner": {
+    "username": "sleepyrisu",
+    "email": "124921839+song567@users.noreply.github.com"
+  },
+  "records": {
+    "CNAME": "personal-blog-cjw.pages.dev"
+  }
+}