Update README.md

README.md

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 ### Dataset Summary
 
-The dataset contains 200 Chinese native speakers, covering main dialect zones. It is recorded in both noisy and quiet environment and more suitable for the actual application scenario for speech recognition. The recordings are commonly used spoken sentences. Texts are transcribed by professional annotators. It can be used for speech recognition and machine translation.
+This dataset is just a sample of Chinese Speech Data by Mobile Phone(paid dataset).The dataset contains 200 Chinese native speakers, covering main dialect zones. It is recorded in both noisy and quiet environment and more suitable for the actual application scenario for speech recognition. The recordings are commonly used spoken sentences. Texts are transcribed by professional annotators. It can be used for speech recognition and machine translation.
                            
-For more details, please refer to the link: https://www.nexdata.ai/datasets/speechrecog/234?source=Huggingface
+ For more details & to download the rest of the dataset(paid),please refer to the link: https://www.nexdata.ai/datasets/speechrecog/234?source=Huggingface
 
 ### Supported Tasks and Leaderboards