docs(plugin): improve plugin docs

Author: akinoccc

packages/docs/guide/advances/plugin.md

@@ -2,6 +2,10 @@
 
 `vue-styled-components` supports custom plugins. It allows you to hook into the CSS generation process, enabling customization and extending functionality. By providing `beforeBuild` and `afterBuild` hooks, you can modify elements before they are compiled into CSS and adjust the compiled CSS afterward. This system is flexible and supports both single and multiple callbacks.
 
+::: danger CAUTION
+If unnessary, it is not recommended to use this feature. Because it is executed in runtime, which may affect performance.
+:::
+
 ## `register`
 
 `register` accepts a plugin object with `beforeBuild` and `afterBuild` hooks.
@@ -14,7 +18,7 @@ const plugin = register({
 ```
 
 ::: warning NOTES
-The `register` method must be called before `app.mount()`. Otherwise, the plugin will not be registered and the hooks will not be called.
+`register` method must be called before `app.mount()`. Otherwise, the plugin will not be registered and the hooks will not be called.
 :::
 
 ## `beforeBuild` Hook

packages/docs/zh/guide/advances/plugin.md

@@ -2,6 +2,12 @@
 
 `vue-styled-components` 支持自定义插件。它允许你在 CSS 生成过程中插入钩子，进行定制和扩展功能。通过提供 `beforeBuild` 和 `afterBuild` 钩子，你可以在元素被编译成 CSS 之前进行修改，或者在编译后的 CSS 中进行调整。支持单个或多个回调函数。
 
+
+::: danger CAUTION
+如非必要，不建议使用此功能。因为其是在运行时执行的，可能影响性能。
+:::
+
+
 ## `register`
 
 `register` 函数接受一个对象，其中包含 `beforeBuild` 和 `afterBuild` 钩子。
@@ -14,7 +20,7 @@ const plugin = register({
 ```
 
 ::: warning 注意
-The registration function must be called before app.mount(), otherwise, the CSS compilation will occur earlier than the plugin registration, making the plugin ineffective.
+注册函数必须在 app.mount() 之前调用, 否则会导致 css 编译比插件注册更早发生, 从而导致插件无效。
 :::
 
 ## `beforeBuild` 钩子