Update docs

- Link to released version of ikev2_config_import.cmd on GitHub

Author: hwdsl2

docs/ikev2-howto-zh.md

@@ -129,7 +129,7 @@ To customize IKEv2 or client options, run this script without arguments.
 Windows 8, 10 和 11 用户可以自动导入 IKEv2 配置：
 
 1. 将生成的 `.p12` 文件安全地传送到你的计算机。
-1. 右键单击 [ikev2_config_import.cmd](https://dl.ls20.com/scripts/ikev2_config_import.cmd) 并保存这个辅助脚本到与 `.p12` 文件 **相同的文件夹**。
+1. 右键单击 [ikev2_config_import.cmd](https://github.com/hwdsl2/vpn-extras/releases/latest/download/ikev2_config_import.cmd) 并保存这个辅助脚本到与 `.p12` 文件 **相同的文件夹**。
 1. 右键单击保存的脚本，选择 **属性**。单击对话框下方的 **解除锁定**，然后单击 **确定**。
 1. 右键单击保存的脚本，选择 **以管理员身份运行** 并按提示操作。
 

docs/ikev2-howto.md

@@ -129,7 +129,7 @@ To customize IKEv2 or client options, run this script without arguments.
 Windows 8, 10 and 11 users can automatically import IKEv2 configuration:
 
 1. Securely transfer the generated `.p12` file to your computer.
-1. Right-click on [ikev2_config_import.cmd](https://dl.ls20.com/scripts/ikev2_config_import.cmd) and save this helper script to the **same folder** as the `.p12` file.
+1. Right-click on [ikev2_config_import.cmd](https://github.com/hwdsl2/vpn-extras/releases/latest/download/ikev2_config_import.cmd) and save this helper script to the **same folder** as the `.p12` file.
 1. Right-click on the saved script, select **Properties**. Click on **Unblock** at the bottom, then click on **OK**.
 1. Right-click on the saved script, select **Run as administrator** and follow the prompts.