fix video error in flash jetpack of J401

docs/Edge/NVIDIA_Jetson/Carrier_Boards/J401/reComputer_J4012_Flash_Jetpack.md

@@ -314,19 +314,28 @@ The below image is for Orin NX 16GB
 
 </details>
 
-### Method 1: Flash the device with a single command.
+
+### Flash the device with a single command.
+
+<details>
+
+<summary> Flash the device with a single command. </summary>
+
 The reComputer Jetson J30/40 has launched a one-click flashing script, which supports flashing Jetpack 5.1.1, 5.1.2 and 6.0. Currently, the one-click flashing for Jetpack 6.1 and other series of reComputer Jetson is under testing and will be available to everyone in the near future. 
 
 ```bash
 wget -O ./flashing.sh https://files.seeedstudio.com/OSHW_Jetson/flashing.sh  && sudo chmod 777 ./flashing.sh && ./flashing.sh
 ```
 
+<iframe width="960" height="480" src="https://www.youtube.com/embed/_YfpJAhhT-g?si=OJxCcPqWauYEp9LR" title="YouTube video player" frameborder="0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share" referrerpolicy="strict-origin-when-cross-origin" allowfullscreen></iframe>
 
-<div align="center">
-  <iframe width="800" height="450" src="https://www.youtube.com/watch?v=_YfpJAhhT-g" title="one-click flashing" frameborder="0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share" referrerpolicy="strict-origin-when-cross-origin" allowfullscreen></iframe>
-</div>
+:::caution
+Disclaimer: The one-click flashing script aims to make jetpack flashing quicker. The current version is a beta one and may have many problems. We hope for your understanding. If there are flashing issues, follow the `Flash The Device Step by Step` below and give feedback in our [Discord Jetson channel](https://discord.com/channels/862602258452578314/930732339624026152). We'll fix them promptly and improve this function in the near future. 
+:::
+
+</details>
 
-### Method 2: Flash the device step by step.
+### Flash the device step by step.
 
 :::note
 Before moving onto flashing, it should be noted that Jetson Orin NX module only supports JetPack 5.1 and above, while Jetson Orin Nano module only supports JetPack 5.1.1 and above.