Update owner username and CNAME in vectxr.json

made the move to finally get the new name

domains/vectxr.json

@@ -1,9 +1,9 @@
 {
   "owner": {
-    "username": "IzNard",
+    "username": "0xvectxr",
     "email": "izan.garcia.aguado@gmail.com"
   },
   "records": {
-    "CNAME": "iznard.github.io"
+    "CNAME": "0xvectxr.github.io"
   }
 }