Update owner details and CNAME record in kaiblog.json

domains/kaiblog.json

@@ -1,9 +1,9 @@
 {
   "owner": {
-    "username": "Kaihchs118",
-    "email": "kaiyt0621@gmail.com"
+    "username": "kai980621",
+    "email": "kaigithub0621@gmail.com"
   },
   "records": {
-    "CNAME": "Kaihchs118.github.io"
+    "CNAME": "cname.vercel-dns.com"
   }
 }