Add Readme file

README.md

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+# Demo  
+
+\[ English | [简体中文](README_zh-cn.md) \]
+
+## Overview  
+
+This repository implements examples of openvela native application code. Developers can quickly get started with development based on our documentation and examples.  
+
+## Usage Instructions  
+
+- [Music Player](../../../../open-vela/docss/Example/Music_Player_Example_en.md)  
+- [Smart Band](../../../../open-vela/docss/Example/Smart_Band_Example_en.md)  
+- [Bicycle Computer](../../../../open-vela/docss/Example/X_Track_en.md)

README_zh-cn.md

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+# Demo
+
+\[ [English](README.md) | 简体中文 \]
+
+## 简介
+
+该仓库实现了 openvela native应用代码示例，开发者可以根据我们的文档和示例，快速上手开发。
+
+## 使用说明
+
+- [音乐播放器](../../../../open-vela/docss/Example/Music_Player_Example_zh-cn.md)
+- [智能手环](../../../../open-vela/docss/Example/Smart_Band_Example_zh-cn.md)
+- [自行车码表](../../../../open-vela/docss/Example/X_Track_zh-cn.md)