fix: uni-app-x

docs/uni-app-x/_sidebar.md

@@ -25,7 +25,7 @@
   * [Error](common/error.md)
   * [UniError](common/unierror.md) -->
 * 组件
-  * [概述](component/)
+  * [概述](component/README.md)
   * [公共属性和事件](component/common.md)
   * [view](component/view.md)
   * [scroll-view](component/scroll-view.md)
@@ -48,7 +48,7 @@
   * [web-view](component/web-view.md)
   * [animation-view](component/animation-view.md)
 * API
-  * [概述](api/)
+  * [概述](api/README.md)
   * 全局
     * [getapp](api/getapp.md)
     * [getcurrentpages](api/getcurrentpages.md)