feat:增加布局组件

docs/.vitepress/theme/components/MyLayout.vue

@@ -0,0 +1,16 @@
+<script setup lang="ts">
+import DefaultTheme from 'vitepress/theme'
+import ArticleMetadat from './ArticleMetadata.vue';
+</script>
+
+<template>
+  <DefaultTheme.Layout v-bind="$attrs">
+    <template #doc-before>
+      <ArticleMetadat />
+    </template>
+
+  </DefaultTheme.Layout>
+</template>
+
+<style scoped>
+</style>