Update README.md

README.md

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 pretty_name: chuanjun
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-This dataset is for AI seismology and can be used for tasks such as phase picking and polarity determination.Some Data is download in [seisbench](https://github.com/seisbench/seisbench).
+This dataset is for AI seismology and can be used for tasks such as phase picking and polarity determination.Some datasets are download in [seisbench](https://github.com/seisbench/seisbench).
 
 I am developing a unified tool for polarity determination--[SeisPolarity](https://github.com/Chuan1937/SeisPolarity), and I hope that like-minded individuals will join me.