update doc

Signed-off-by: Nester.zhou <ester.zhou@huawei.com>

en/application-dev/reference/arkui-ts/ts-transition-animation-shared-elements.md

 # Transition of Shared Elements
 
 
-> ![icon-note.gif](public_sys-resources/icon-note.gif) **NOTE**
+> **NOTE**
 > This animationis supported since API version 7. Updates will be marked with a superscript to indicate their earliest API version.
 
 
-Shared element transition can be used for transition between pages, for example, transition from an image on the current page to the next page.
+Transition of shared elements can be used for transition between pages, for example, transition from an image on the current page to the next page.
 
 
 ## Type
 
-  | Name | Type | Default Value | Description | 
+| Name | Type | Default Value | Description |
 | -------- | -------- | -------- | -------- |
-| sharedTransition | id: string,<br/>options?: Object | - | If the same ID is configured for a component on the two pages, this shared component is transited. If this parameter is set to an empty string, no shared elements are transited. | 
+| sharedTransition | id: string,<br/>options?: Object | - | If the same ID is configured for a component on the two pages, this shared component is transited. If this parameter is set to an empty string, no shared elements are transited. |
 
 - options parameters
-    | Name | Type | Default Value | Mandatory | Description | 
+    | Name | Type | Default Value | Mandatory | Description |
   | -------- | -------- | -------- | -------- | -------- |
-  | duration | number | 1000 | No | Animation duration, in ms. The default duration is 1000 ms. | 
-  | curve | Curve \| Curves | Linear | No | The default curve is linear. For details about the valid values, see **Curve enums**. | 
-  | delay | number | 0 | No | Delay of animation playback, in ms. By default, the playback is not delayed. | 
+  | duration | number | 1000 | No | Animation duration, in ms. The default duration is 1000 ms. |
+  | curve | Curve \| Curves | Linear | No | The default curve is linear. For details about the valid values, see **Curve enums**. |
+  | delay | number | 0 | No | Delay of animation playback, in ms. By default, the playback is not delayed. |
 
 
 ## Example
 
 The example shows the transition of a shared element from a page and page B.
 
-  
-```
+
+```ts
+// xxx.ets
 @Entry
 @Component
 struct SharedTransitionExample {
-  @State scale: number = 1
-  @State opacity: number = 1
   @State active: boolean = false
 
   build() {
@@ -55,9 +54,8 @@ struct SharedTransitionExample {
 }
 ```
 
-  
-```
-// PageB
+```ts
+// PageB.ets
 @Entry
 @Component
 struct BExample {