Update README.md

README.md

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 # LEVER for Codex on Spider
-Basic usage:
-Load the model and tokenizer as follows:
-```python
-tokenizer = T5Tokenizer.from_pretrained("Yale-LILY/lever-spider-codex")
-model = T5ForConditionalGeneration.from_pretrained("Yale-LILY/lever-spider-codex")
-```
- 
+
+This is one of the models produced by the paper ["LEVER: Learning to Verify Language-to-Code Generation with Execution"](https://arxiv.org/abs/2302.08468).
+
+Authors: [Ansong Ni](https://niansong1996.github.io), Srini Iyer, Dragomir Radev, Ves Stoyanov, Wen-tau Yih, Sida I. Wang*, Xi Victoria Lin*
+
 # Model Details