docs(cn): integrations/postcss translation (#16)

Author: HerbertHe

integrations/postcss.md

@@ -1,22 +1,22 @@
 <Logo name="postcss" class="logo-float-xl"/>
 
-# Integration for [PostCSS](https://postcss.org/)
+# [PostCSS](https://postcss.org/) 集成 {#integration-for-postcss}
 
 <PackageInfo name="postcss-windicss" author="antfu" />
 
-> 🧪 Experimental.
+> 🧪 实验性的。
 
-> ⚠️ Using this package is **discouraged** as there are some limitations of PostCSS's API. Use our [first-class integrations](https://windicss.org/guide/installation.html) for each dedicated framework/build tool to get **the best develop experience and performance**. This plugin should be your last option to integrate Windi CSS.
+> ⚠️ 因为一些 PostCSS API 的限制，我们并**不鼓励**使用这个包。我们为每一个专用工具提供了 [最佳的适配](https://windicss.org/guide/installation.html) 以获得**最佳的开发体验和性能**。这个插件应当作为你集成 Windi CSS 的最后一个选择。
 
-## Install
+## 安装 {#install}
 
-Install `postcss-windicss` from NPM
+从 NPM 安装 `postcss-windicss`
 
 ```bash
 npm i -D postcss-windicss
 ```
 
-Create `postcss.config.js` under your project root
+在你的项目根目录下创建 `postcss.config.js`
 
 ```js
 // postcss.config.js
@@ -27,14 +27,14 @@ module.exports = {
 }
 ```
 
-Add `@windicss` to your main css entry:
+将 `@windicss` 添加到你的 CSS 入口：
 
 ```css
 /* main.css */
 @windicss;
 ```
 
-Create `windi.config.js` / `windi.config.ts` under your project root with this configurations
+在你的项目根目录下创建 `windi.config.js` / `windi.config.ts` 并写入下面的配置
 
 ```js
 // windi.config.js
@@ -48,4 +48,4 @@ export default defineConfig({
 })
 ```
 
-And enjoy!
+用得开心~