diff --git a/README.md b/README.md
index fa7e097..c274865 100644
--- a/README.md
+++ b/README.md
@@ -2,12 +2,12 @@
 
 [中文](README_CN.md)
 
-React Basic Virtual List. [Online Demo](https://phphe.github.io/react-base-virtual-list/)
+React basic virtual list, supports common features and is easy to customize. [Online Demo](https://phphe.github.io/react-base-virtual-list/)
 
 ## Features
 
-- Supports lists with different item heights.
-- Simple and easy to extend, only contains common features.
+- Supports common features and is easy to customize. Check [Development](#development).
+- Supports lists with fixed height or dynamic height items.
 - High performance. For lists with different item heights, it does not retrieve the height of each item.
 - Exported files include TypeScript definition files, CJS files, ES files, IIFE files, and IIFE source maps. The IIFE file can be use by `script` tag in browser, see [IIFE](#iife).
 
@@ -133,6 +133,13 @@ You can also use the following third-party CDN url to include it.
 - unpkg: https://unpkg.com/@phphe/react-base-virtual-list
 - jsdelivr: https://cdn.jsdelivr.net/npm/@phphe/react-base-virtual-list
 
+## Development
+
+- `lib`: The main files, also the files that are packaged into the library. Running `npm run build` will package the files in this directory into the `dist` folder. The corresponding Vite configuration file is `vite.build.ts`.
+- `src`: The files used for development and debugging. Running `npm run dev` will run the code in this directory in the browser. Running `npm run build:web` will package the code in this directory into the `dist` folder. The corresponding Vite configuration file is `vite.config.ts`.
+- `uno.config.ts`: [unocss](https://github.com/unocss/unocss) configuration file. `unocss` only works in the `src` folder. With the current configuration, you can use `Tailwindcss` style class names.
+- `.github/workflows/build.yml`: Some automated actions performed when publishing to GitHub. You can delete or modify it.
+
 ## Changelog
 
 https://github.com/phphe/react-base-virtual-list/releases
diff --git a/README_CN.md b/README_CN.md
index b266e50..f5834ec 100644
--- a/README_CN.md
+++ b/README_CN.md
@@ -2,12 +2,12 @@
 
 [English](README.md)
 
-React 基础虚拟列表。[在线示例](https://phphe.github.io/react-base-virtual-list/)
+React 基础虚拟列表，实现了常用功能并且易于二次开发。[在线示例](https://phphe.github.io/react-base-virtual-list/)
 
 ## 特点
 
-- 支持每项高度不同的列表。
-- 简单易扩展，只含有常见功能。
+- 实现了常用功能并且易于二次开发，见[开发指南](#开发指南)。
+- 支持每项高度固定和不固定的列表。
 - 高性能。针对每项高度不同的列表，不会获取每项的高度。
 - 导出文件包含 typescript 定义文件, cjs 文件，es 文件，iife 文件和 iife source map。iife 文件供浏览器直接调用，见 [iife](#iife).
 
@@ -133,6 +133,13 @@ interface VirtualListHandle {
 - unpkg: https://unpkg.com/@phphe/react-base-virtual-list
 - jsdelivr: https://cdn.jsdelivr.net/npm/@phphe/react-base-virtual-list
 
+## 开发指南
+
+- `lib`: 主要文件，也是打包成库的文件。运行`npm run build`会打包其中的文件到`dist`目录。对应 vite 配置文件为: `vite.build.ts`.
+- `src`: 开发时调试的文件。运行`npm run dev`会在浏览器中运行其中的代码。运行`npm run build:web`会把其中的代码打包到`dist`目录。对应 vite 配置文件为: `vite.config.ts`.
+- `uno.config.ts`: [unocss](https://github.com/unocss/unocss) 配置文件。`unocss`仅在`src`文件夹生效。当前配置下，你可以使用`Tailwindcss`风格的`class`名。
+- `.github/workflows/build.yml`: 发布到 github 时自动进行的一些操作。你可以删除或者修改。
+
 ## 更新日志(changelog)
 
 https://github.com/phphe/react-base-virtual-list/releases