docs: update

README.md

@@ -32,9 +32,16 @@
 
 ## Sponsors
 
-[<img width="180" src="docs/.vuepress/public/vxtrans.png" alt="vxtrans">](https://vx.link/?rel=geekdada)
+### [MorseGPT][morse-link]
 
-[vxTrans - 网络优化工具，有效地降低延迟，改善传输性能](https://vx.link/?rel=geekdada)
+[无需海外信用卡和手机号码使用 `gpt-4o` 模型，支持微信、支付宝付款][morse-link]
+
+[<img width="180" src="docs/.vuepress/public/vxtrans.png" alt="vxtrans">][vx-link]
+
+[vxTrans - 网络优化工具，有效地降低延迟，改善传输性能][vx-link]
+
+[morse-link]: https://morsegpt.net/?utm_source=surgio
+[vx-link]: https://vx.link/?rel=geekdada
 
 ## Contributors