update docs

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

en/application-dev/reference/apis/js-apis-timer.md

@@ -3,13 +3,6 @@
 
 ## setTimeout
 
-## Modules to Import
-
-
-```
-import Time from '@ohos.Time';
-```
-
 setTimeout(handler[,delay[,…args]]): number
 
 Sets a timer for the system to call a function after the timer goes off.

en/application-dev/reference/arkui-ts/ts-universal-attributes-sharp-clipping.md

 # Shape Clipping
 
 
-> ![icon-note.gif](public_sys-resources/icon-note.gif) **NOTE**
+> **NOTE**
+>
 > This attribute is supported since API version 7. Updates will be marked with a superscript to indicate their earliest API version.
 
 
@@ -13,16 +14,17 @@ None
 ## Attributes
 
 
-  | Name | Type | Default Value | Description | 
+| Name | Type | Default Value | Description |
 | -------- | -------- | -------- | -------- |
-| clip | Shape \| boolean | false | Specifies a clip mode. The value **Shape** indicates that the current component is cropped based on the specified shape. The value **boolean** specifies whether to clip the component based on the edge outline. | 
-| mask | Shape | - | Adds a mask of the specified shape to the current component. | 
+| clip | Shape \| boolean | false | Clip mode. The value **Shape** indicates that the current component is cropped based on the specified shape. The value **boolean** specifies whether to clip the component based on the edge outline. |
+| mask | Shape | - | Mask of the specified shape for the current component. |
 
 
 ## Example
 
-  
-```
+
+```ts
+// xxx.ets
 @Entry
 @Component
 struct ClipAndMaskExample {
@@ -30,24 +32,24 @@ struct ClipAndMaskExample {
     Column({ space: 5 }) {
       Text('clip').fontSize(9).width('90%').fontColor(0xCCCCCC)
       // Clip the image by using a circle with a diameter of 280px.
-      Image('/comment/bg.jpg')
+      Image($r('app.media.example'))
         .clip(new Circle({ width: 80, height: 80 }))
         .width('500px').height('280px')
 
       Row() {
-        Image('/comment/bg.jpg').width('500px').height('280px')
+        Image($r('app.media.example')).width('500px').height('280px')
       }
       .clip(true)
       .borderRadius(20)
 
       Text('mask').fontSize(9).width('90%').fontColor(0xCCCCCC)
       // Add a 500 px x 280 px mask to the image.
-      Image('/comment/bg.jpg')
+      Image($r('app.media.example'))
         .mask(new Rect({ width: '500px', height: '280px' }).fill(Color.Gray))
         .width('500px').height('280px')
 
       // Add a 280 px x 280 px circle mask to the image.
-      Image('/comment/bg.jpg')
+      Image($r('app.media.example'))
         .mask(new Circle({ width: '280px', height: '280px' }).fill(Color.Gray))
         .width('500px').height('281px')
     }