!978 Done! +!918:【轻量级 PR】：update zh-cn/application-dev/ui/Readme-CN.md.

Merge pull request !978 from wusongqing/TR918

en/application-dev/ui/Readme-EN.md

-# ArkUI
+# UI
 
--   [JavaScript-based Web-like Development Paradigm](ui-arkui-js.md)
+- ArkUI
+    - JavaScript-based Web-like Development Paradigm
         - [Overview](ui-js-overview.md)
-    -   [Building the UI](ui-js-building-ui.md)
+        - Building the UI
             - [Component Overview](ui-js-building-ui-component.md)
-        -   [Building the Layout](ui-js-building-ui-layout.md)
+            - Building the Layout
                 - [Layout Description](ui-js-building-ui-layout-intro.md)
                 - [Adding Title and Paragraph Text](ui-js-building-ui-layout-text.md)
                 - [Adding an Image](ui-js-building-ui-layout-image.md)
@@ -14,8 +15,7 @@
             - [Developing Animations](ui-js-building-ui-animation.md)
             - [Defining Events](ui-js-building-ui-event.md)
             - [Defining Page Routes](ui-js-building-ui-routes.md)
-
-    -   [Common Component Development Guidelines](ui-js-common-components.md)
+        - Common Component Development Guidelines
             - [Text](ui-js-components-text.md)
             - [Input](ui-js-components-input.md)
             - [Button](ui-js-components-button.md)
@@ -26,25 +26,27 @@
             - [Stepper](ui-js-components-stepper.md)
             - [Tabs](ui-js-component-tabs.md)
             - [Image](ui-js-components-images.md)
-    -   [Animation Development Guidelines](ui-js-animate.md)
+        - Animation Development Guidelines
+            - CSS Animation
                 - [Attribute Style Animation](ui-js-animate-attribute-style.md)
                 - [Defining Animations with the transform Attribute](ui-js-animate-transform.md)
-        -   [CSS Animation](ui-js-animate-css.md)
                 - [Defining Animations with the background-position Attribute](ui-js-animate-background-position-style.md)
-        -   [JS Animation](ui-js-animate-javascript.md)
+        -   JS Animation
             -   [Component Animation](ui-js-animate-component.md)
-            -   [Interpolator Animation](ui-js-animate-interpolator.md)
+            -   Interpolator Animation
                 -   [Animation Effect](ui-js-animate-dynamic-effects.md)
                 -   [Animation Frame](ui-js-animate-frame.md)
+
         - [Custom Components](ui-js-custom-components.md)
--   [TypeScript-based Declarative Development Paradigm](ui-arkui-ts.md)
+
+    -   TypeScript-based Declarative Development Paradigm
         -   [Overview](ui-ts-overview.md)
         -   [Introduction](ui-ts-developing-intro.md)
-    -   [Experiencing the Declarative UI](ui-ts-experiencing-declarative--u.md)
+        -   Experiencing the Declarative UI
             -   [Creating a Declarative UI Project](ui-ts-creating-project.md)
             -   [Getting to Know Components](ui-ts-components.md)
             -   [Creating a Simple Page](ui-ts-creating-simple-page.md)
-    -   [Defining Page Layout and Connection](ui-ts-page-layout-connections.md)
+        -   Defining Page Layout and Connection
             -   [Building a Food Data Model](ui-ts-building-data-model.md)
             -   [Building a Food Category List Layout](ui-ts-building-category-list-layout.md)
             -   [Building a Food Category Grid Layout](ui-ts-building-category-grid-layout.md)

zh-cn/application-dev/ui/Readme-CN.md

@@ -27,13 +27,13 @@
             - [Tabs](ui-js-component-tabs.md)
             - [Image](ui-js-components-images.md)
         - 动效开发指导
-            - [CSS动画](ui-js-animate-css.md)
+            - CSS动画
                 - [属性样式动画](ui-js-animate-attribute-style.md)
                 - [transform样式动画](ui-js-animate-transform.md)
                 - [background-position样式动画](ui-js-animate-background-position-style.md)
-            - [JS动画](ui-js-animate-javascript.md)
+            - JS动画
                 -   [组件动画](ui-js-animate-component.md)
-                -   [插值器动画](ui-js-animate-interpolator.md)
+                -   插值器动画
                     -   [动画动效](ui-js-animate-dynamic-effects.md)
                     -   [动画帧](ui-js-animate-frame.md)