doc: Update README.md

Author: jaywcjlove

README.md

@@ -44,6 +44,7 @@ Quick Reference
 非常感谢一直以来支持我开源项目的朋友们！如果您认可我的工作，欢迎通过 [赞助](https://wangchujiang.com/#/sponsor)<!--rehype:target=_blank--> 我或下载并使用我开发的 [macOS 应用](https://wangchujiang.com/#/app)<!--rehype:target=_blank--> 来支持我。以下是我个人独立开发的 macOS 应用列表：
 
 <p style="display: inline-block">
+  <a target="_blank" href="https://apps.apple.com/app/Deskmark/6755948110" title="Deskmark for macOS"><img alt="Deskmark" height="52" width="52" src="./appicon/deskmark.png"></a>
   <a target="_blank" href="https://apps.apple.com/app/Keyzer/6500434773" title="Keyzer for macOS"><img alt="Keyzer" height="52" width="52" src="./appicon/keyzer.png"></a>
   <a target="_blank" href="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/jaywcjlove/vidwall-hub" title="Vidwall Hub for macOS"><img alt="Vidwall Hub" height="52" width="52" src="./appicon/vidwall-hub.png"></a>
   <a target="_blank" href="https://apps.apple.com/app/VidCrop/6752624705" title="VidCrop for macOS"><img alt="VidCrop" height="52" width="52" src="./appicon/vidcrop.png"></a>