Update mlc-chat-config.json

mlc-chat-config.json

@@ -71,5 +71,10 @@
     "tokenizer.json",
     "tokenizer_config.json"
   ],
+  "tokenizer_info": {
+    "token_postproc_method": "byte_level",
+    "prepend_space_in_encode": false,
+    "strip_space_in_decode": false
+  },
   "version": "0.1.0"
 }