Update README.md

Author: HongbangYuan

README.md

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 ### News
+- 2024-09-26: 🚀🚀 Our paper has been accepted at NeurIPS D&B Track 2024.
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 - 2024-06-18: We released our [paper](https://arxiv.org/abs/2406.10890) titled "RWKU: Benchmarking Real-World Knowledge Unlearning for Large Language Models".
 
 - 2024-06-05: We released our [dataset](https://huggingface.co/datasets/jinzhuoran/RWKU) on the Huggingface.