docs: add introduction

docs/cli/src/SUMMARY.md

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 # Summary
 
-- [Chapter 1](./chapter_1.md)
+- [Introduction](./introduction.md)

docs/cli/src/chapter_1.md

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-# Chapter 1

docs/cli/src/introduction.md

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+# Introduction
+
+📦✨ **Dioxus-Cli** is a tool to help get dioxus projects off the ground.
+
+![dioxus-logo](https://dioxuslabs.com/guide/images/dioxuslogo_full.png)
+
+It include `dev server`, `hot reload` and some `quick command` to help you use dioxus.
+
+## Features
+
+- [x] `html` to `rsx` conversion tool
+- [x] hot reload for `web` platform
+- [x] create dioxus project from `git` repo
+- [x] build & pack dioxus project
+- [ ] autoformat dioxus `rsx` code
+
+## Contributors
+
+Contributors to this guide:
+
+- [mrxiaozhuox](https://github.com/mrxiaozhuox)