add readme

README.md

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+## Cyclone Chinese NER
+
+This model provides simplified Chinese NER model based on pretrained model BERT (specifically BERT + CRF)
+Currently, we only support 8 general type of entities ("address", "company", "government", "name", "organization", "position", "scene")
+
+### Usage
+    from transformers import BertConfig
+
+    config = BertConfig.from_pretrained("bert-base-chinese", num_labels=num_labels)
+
+    model_path = "cyclone/cyclone-ner"
+
+    tokenizer = CNerTokenizer.from_pretrained(model_path, do_lower_case=True)
+    model = BertCrfForNer.from_pretrained(model_path, config=config)