Update README.md

README.md

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 **<span style="color:red">Important Notice:</span>**  
-1、Our model parameters were **<span style="color:red">updated on August 24</span>**. If you downloaded the files prior to this date, please ensure you update to the latest version at your earliest convenience！
+1、Our model parameters were **<span style="color:red">updated on August 24</span>**. If you downloaded the files prior to this date, please ensure you update to the latest version at your earliest convenience！<br>
 2、Our technical documentation will be released shortly - stay tuned!
 
 ## Introduction