Update kaustubh.json

domains/kaustubh.json

@@ -1,10 +1,10 @@
 {
   "owner": {
-    "username": "kaustubhkharvi",
+    "username": "kaustubhxyz",
     "email": "kaustubh_2008@outlook.com",
-    "twitter": "Kaustubhkharvi"
+    "twitter": "kaustubhxyz"
   },
   "records": {
-    "CNAME": "kaustubhkharvi.github.io"
+    "CNAME": "kaustubhxyz.github.io"
   }
 }