Update wen.json

Hi, I have updated the records to use CNAME for GitHub Pages as instructed.
Please let me know if any further changes are needed.

domains/wen.json

@@ -4,6 +4,6 @@
         "email": "quocanh010104@gmail.com"
     },
     "records": {
-        "TXT": "2708ed8419ae6340453435c3e342bd"
+        "cname": "wen0x0.github.io"
     }
 }