Update README.md

README.md

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   <a href="https://vuejs.org/">
     <img src="https://img.shields.io/badge/Vue3-brightgreen.svg" alt="vue">
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   <a href="https://vuetifyjs.com/">
     <img src="https://img.shields.io/badge/Vuetify-blue.svg" alt="element-ui">
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   <a>
     <img src="https://img.shields.io/badge/HTML-red.svg">
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   <a href="https://hub.docker.com/repository/docker/aiql/chat-ui/tags?page=1&ordering=last_updated">
     <img src="https://img.shields.io/badge/Docker-lightskyblue.svg">
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   <a href="https://github.com/AI-QL/chat-ui/blob/main/LICENSE">
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 - Support for toggling between `original format` and `Markdown format` display
 
+- Support internationalization and localization `i18n`
+
 ## How to use
 
 #### Option 1: Goto demo [AIQL](https://chat.aiql.com/)