update readme.md

README.md

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 ## Bing Wallpaper
-- 时间: 20241231
-- 标题: A park for all seasons
-- 版权: Tasmanian snow gum and pandani plants near Lake Dobson, Mount Field National Park, Tasmania, Australia (© Whitworth Images/Getty Images)
-![](https://cn.bing.com/th?id=OHR.MountFieldNP_EN-US6905459745_UHD.jpg&rf=LaDigue_UHD.jpg&pid=hp&w=3840&h=2160&rs=1&c=4)
+- 时间: 20250101
+- 标题: Midnight in Rio
+- 版权: New Year's Eve fireworks over Copacabana Beach, Rio de Janeiro, Brazil (© Wagner Meier/Getty Images)
+![](https://cn.bing.com/th?id=OHR.RioNewYear_EN-US7216341802_UHD.jpg&rf=LaDigue_UHD.jpg&pid=hp&w=3840&h=2160&rs=1&c=4)