update ts-container-refresh.md (8582)

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

en/application-dev/reference/arkui-ts/ts-container-refresh.md

@@ -16,7 +16,7 @@ This component supports only one child component.
 
 ## APIs
 
-Refresh\(value: \{refreshing: boolean, offset?: Length, friction?: number | string\}\)
+Refresh\(value: \{ refreshing: boolean, offset?: Length, friction?: number | string \}\)
 
 - Parameters
 
@@ -59,7 +59,7 @@ struct RefreshExample {
 
   build() {
     Column() {
-      Refresh({refreshing: $$this.isRefreshing, offset: 120, friction: 100}) {
+      Refresh({ refreshing: $$this.isRefreshing, offset: 120, friction: 100 }) {
         Text('Pull Down and refresh: ' + this.counter)
           .fontSize(30)
           .margin(10)