Update maskduck.json

domains/maskduck.json

@@ -8,6 +8,6 @@
     "note": "My Discord discriminator sometimes is not 1337 and sometimes I will change it. If you want to find me on Discord, my ID is 716134528409665586."
   },
   "record": {
-    "CNAME": "maskduck.github.io"
+    "CNAME": "maskduck.pages.dev"
   }
 }