chore: update readme

Author: litingyes

README.md

@@ -11,6 +11,8 @@
   <a href="./README.zh-CN.md">简体中文</a>
 </p>
 
+> Version 2.x fails to build when used in vitepress, please use version 1.x for now (PR welcome)
+
 A Vite plugin made for previewing and editing Vue components in Markdown and, of course, exporting a **VuePreview** component to be used directly in Vue applications.
 
 ## Demo
@@ -22,7 +24,7 @@ A Vite plugin made for previewing and editing Vue components in Markdown and, of
 ## Install
 
 ```bash
-pnpm add vite-plugin-vue-preview
+pnpm add vite-plugin-vue-preview@1
 ```
 
 ## Features

README.zh-CN.md

@@ -11,6 +11,8 @@
   <a href="./README.md">English</a>
 </p>
 
+> 2.x版本在vitepress中使用时构建失败，请暂时使用1.x版本（欢迎pr）
+
 一个为在 Markdown 中预览和编辑Vue组件而生的Vite插件，当然，也导出了一个 **VuePreview** 组件可以直接在 Vue 应用中使用
 
 ## 演示
@@ -22,7 +24,7 @@
 ## 安装
 
 ```bash
-pnpm add vite-plugin-vue-preview
+pnpm add vite-plugin-vue-preview@1
 ```
 
 ## 特征

test/vue/src/DemoSfc.vue

@@ -1,6 +1,6 @@
 <script lang="ts" setup>
 import '../../../dist/style.css'
-import { VuePreview } from '../../../dist'
+import VuePreview from '../../../dist/sfc'
 </script>
 
 <template>