Update README.md

Author: xianweiz

README.md

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 # arcsysu.github.io
-<img width="441" height="216" alt="image" src="https://github.com/user-attachments/assets/6cc8758b-17bd-4eda-abd9-9670c5252755" />
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+## ARChitecture and SYStem Upscaling @ SYSU
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+## arcSYSu refines computing system uses
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+## see xianweiz.github.io to learn more about arcSYSu ...