Update add-remove-beep-sound.md

Author: yqz5625

programming/javascript/faq/add-remove-beep-sound.md

@@ -19,9 +19,7 @@ Dynamsoft.DCE.Feedback.beep();
 **_NOTE:_** - Check the class [Feedback](https://www.dynamsoft.com/camera-enhancer/docs/web/programming/javascript/api-reference/feedback.html#beep) for more details.
 
 
-<details>
-<summary><b> Version 9</b></summary>
+## Version 9
 This feature is controlled using the [whenToPlaySoundforSuccessfulRead](https://www.dynamsoft.com/barcode-reader/docs/web/programming/javascript/api-reference/interface/ScanSettings.html?ver=latest) property. To enable the feature, set the property to either **frame** or **unique**. To disable the feature, set it to **never**.
 
 > This feature is disabled by default.
-</details>