修复默认页面

public/docset/ui/icons.md

@@ -13,13 +13,16 @@
 
 ### 使用
 
-```html
+<wc-sandbox>
+  <wc-lang slot="javascript">
+import '//jscdn.ink/@bd/ui/latest/space/index.js'
+import '//jscdn.ink/@bd/ui/latest/icon/index.js'
+  </wc-lang>
+  <wc-lang slot="html">
 <wc-icon name="home"></wc-icon>
-```
+  </wc-lang>
+</wc-sandbox>
 
-<section class="flex-free">
-  <wc-icon name="home"></wc-icon>
-</section>
 
 ### 尺寸
 `size="xxxl"`, `size="xxl"`, `size="xl"`, `size="l"`, `size="m"`, `size="s"`, 连同默认尺寸在内, 5种预设规格。

src/pages/@wcui/docs/app.vue

@@ -27,7 +27,7 @@ export default {
   },
 
   mounted() {
-    let key = location.search.slice(1)
+    let key = location.search.slice(1) || 'logs'
     this.nav = key
 
     fetch(`/docset/ui/${key}.md`)