Migrate model card from transformers-repo

Read announcement at https://discuss.huggingface.co/t/announcement-all-model-cards-will-be-migrated-to-hf-co-model-repos/2755
Original file history: https://github.com/huggingface/transformers/commits/master/model_cards/clue/xlnet_chinese_large/README.md

README.md

@@ -0,0 +1,33 @@
+---
+language: zh
+---
+
+## xlnet_chinese_large
+
+### Overview
+
+**Language model:** xlnet-large
+**Model size:** 1.3G
+**Language:** Chinese
+**Training data:** [CLUECorpusSmall](https://github.com/CLUEbenchmark/CLUECorpus2020)
+**Eval data:** [CLUE dataset](https://github.com/CLUEbenchmark/CLUE)
+
+### Results
+
+For results on downstream tasks like text classification, please refer to [this repository](https://github.com/CLUEbenchmark/CLUE).
+
+### Usage
+
+```
+import torch
+from transformers import XLNetTokenizer,XLNetModel
+tokenizer = XLNetTokenizer.from_pretrained("clue/xlnet_chinese_large")
+xlnet = XLNetModel.from_pretrained("clue/xlnet_chinese_large")
+```
+
+### About CLUE benchmark
+
+Organization of Language Understanding Evaluation benchmark for Chinese: tasks & datasets, baselines, pre-trained Chinese models, corpus and leaderboard.
+
+Github: https://github.com/CLUEbenchmark
+Website: https://www.cluebenchmarks.com/