update tokenizer_config

tokenizer_config.json

@@ -55,6 +55,12 @@
   "sep_token": "</s>",
   "stride": 0,
   "tokenizer_class": "XLMRobertaTokenizer",
+  "do_lower_case": false,
+  "max_len": 512,
+  "model_max_length": 512,
+  "padding_side": "right",
+  "special_tokens_map_file": "special_tokens_map.json",
+  "use_fast": true
   "truncation_side": "right",
   "truncation_strategy": "longest_first",
   "unk_token": "<unk>"