text: Title: transformer2.2.2 加载参数失败
  Body: 直接加载会报错
  OSError: Model name '/Users/wonbyron/bert/chinese_roberta_wwm_large_ext_pytorch/' was not found in model name list (bert-base-uncased, bert-large-uncased, bert-base-cased, bert-large-cased, bert-base-multilingual-uncased, bert-base-multilingual-cased, bert-base-chinese, bert-base-german-cased, bert-large-uncased-whole-word-masking, bert-large-cased-whole-word-masking, bert-large-uncased-whole-word-masking-finetuned-squad, bert-large-cased-whole-word-masking-finetuned-squad, bert-base-cased-finetuned-mrpc, bert-base-german-dbmdz-cased, bert-base-german-dbmdz-uncased). We assumed '/Users/wonbyron/bert/chinese_roberta_wwm_large_ext_pytorch/config.json' was a path or url to a configuration file named config.json or a directory containing such a file but couldn't find any such file at this path or url.
  经检查,应该将config文件改成bert.config才行