Create README.md
Create README.md

Add readme for the NER task.
qingqing01/models,kuke/models,PaddlePaddle/models,lcy-seso/models,qingqing01/models,PaddlePaddle/models,kuke/models,kuke/models,lcy-seso/models,PaddlePaddle/models,lcy-seso/models,qingqing01/models,kuke/models