feat: add basic

site/demos/button/basic.vue

@@ -7,10 +7,14 @@ title: 基础按钮
 
 </docs>
 
-<script lang="ts" setup></script>
+<script lang="ts" setup>
+  import Button from '../../../components/button'
+</script>
 
 <template>
-  <div>按钮</div>
+  <div>
+    <Button />
+  </div>
 </template>
 
 <style scoped></style>