change readme for more detail

zhaomingwork

2023-05-15 c8fe32c5bc0d7ec434d4cbce9f38bd0e1617c93a

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# Contact
If you have any questions about M2MeT2.0 challenge, please contact us by
 
- email: [m2met.alimeeting@gmail.com](mailto:m2met.alimeeting@gmail.com)
 
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