Update README.md

README.md

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-## 介绍
+## Introduction
 
-chinese-c4是一个基于Common Crawl的清洁中文互联网数据集。数据集大小为46.29GB。数据集经过了多个策略流水线清洗，包括中文筛选、基于标点符号的启发式清洗策略、按行哈希去重、Repetition Removal等。数据清洗脚本见 [c4-dataset-script](https://github.com/shjwudp/c4-dataset-script)。这个数据集可以用于中文NLP的预训练、语言模型或语言生成任务等。
+Chinese-C4 is a clean Chinese internet dataset based on Common Crawl. The dataset is 46.29GB and has undergone multiple cleaning strategies, including Chinese filtering, heuristic cleaning based on punctuation, line-based hashing for deduplication, and repetition removal.
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+The dataset is open source and free for commercial use, and you are welcome to use the data and the cleaning strategies provided and contribute your cleaning strategies.
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+You can find the cleaning script for the dataset on GitHub [c4-dataset-script](https://github.com/shjwudp/c4-dataset-script).