docs：更新文档

node_modules/vitepress/dist/client/app/components/Content.d.ts

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+export declare const Content: {
+    setup(): () => import("vue").VNode<import("vue").RendererNode, import("vue").RendererElement, {
+        [key: string]: any;
+    }> | null;
+};

node_modules/vitepress/dist/client/app/components/Content.js

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+import { h } from 'vue';
+import { useRoute } from '../router';
+import { usePrefetch } from '../composables/preFetch';
+export const Content = {
+    setup() {
+        const route = useRoute();
+        if (process.env.NODE_ENV === 'production') {
+            // in prod mode, enable intersectionObserver based pre-fetch.
+            usePrefetch();
+        }
+        return () => (route.component ? h(route.component) : null);
+    }
+};

node_modules/vitepress/dist/client/app/components/Debug.vue

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+<template>
+  <div class="debug" :class="{ open }" @click="open = !open">
+    <pre>debug</pre>
+    <pre>$page {{ $page }}</pre>
+    <pre>$siteByRoute {{ $siteByRoute }}</pre>
+    <pre>$site {{ $site }}</pre>
+  </div>
+</template>
+
+<script>
+import { ref } from 'vue'
+
+export default {
+  setup() {
+    const open = ref(false)
+    return {
+      open
+    }
+  }
+}
+</script>
+
+<style>
+.debug {
+  box-sizing: border-box;
+  position: fixed;
+  z-index: 999;
+  cursor: pointer;
+  bottom: 0;
+  right: 0;
+  width: 80px;
+  height: 30px;
+  padding: 5px;
+  overflow: hidden;
+  color: #eeeeee;
+  transition: all .15s ease;
+  background-color: rgba(0,0,0,0.85);
+}
+
+.debug.open {
+  width: 500px;
+  height: 100%;
+  margin-top: 0;
+  padding: 0 0;
+  overflow: scroll;
+}
+
+.debug pre {
+  font-family: Hack, monospace;
+  font-size: 13px;
+  margin: 0;
+  padding: 5px 10px;
+  border-bottom: 1px solid #eee;
+}
+</style>