Update README.md (FlowiseAI#4229)

Use Chinese Simplified

Author: A-caibird

README.md

@@ -10,7 +10,7 @@
 [![GitHub star chart](https://img.shields.io/github/stars/FlowiseAI/Flowise?style=social)](https://star-history.com/#FlowiseAI/Flowise)
 [![GitHub fork](https://img.shields.io/github/forks/FlowiseAI/Flowise?style=social)](https://github.com/FlowiseAI/Flowise/fork)
 
-English | [繁體中文](./i18n/README-TW.md) | [簡體中文](./i18n/README-ZH.md) | [日本語](./i18n/README-JA.md) | [한국어](./i18n/README-KR.md)
+English | [繁體中文](./i18n/README-TW.md) | [简体中文](./i18n/README-ZH.md) | [日本語](./i18n/README-JA.md) | [한국어](./i18n/README-KR.md)
 
 <h3>Drag & drop UI to build your customized LLM flow</h3>
 <a href="https://github.com/FlowiseAI/Flowise">