text: Title: Layoutlmv3 for RE
  Body: **Describe**
  when i use layoutlmv3 to do RE task on XFUND_zh dataset, the result is  'eval_precision': 0.5283, 'eval_recall': 0.4392.
  i do not konw the reason of the bad result. maybe there is something wrong with my RE task code?  maybe i need more data for training? is there some suggestions for me to improve the  result?   
  Dose anyone meet the same problem? 
  