Update docs

README-zh.md

@@ -8,7 +8,7 @@ IPsec VPN 可以加密你的网络流量，以防止在通过因特网传送时
 
 我们将使用 <a href="https://libreswan.org/" target="_blank">Libreswan</a> 作为 IPsec 服务器，以及 <a href="https://github.com/xelerance/xl2tpd" target="_blank">xl2tpd</a> 作为 L2TP 提供者。
 
-<a href="https://github.com/hwdsl2/docker-ipsec-vpn-server/blob/master/README-zh.md" target="_blank">**&raquo; 另见： Docker 上的 IPsec VPN 服务器**</a>
+<a href="https://github.com/hwdsl2/docker-ipsec-vpn-server/blob/master/README-zh.md" target="_blank">**&raquo; 另见：Docker 上的 IPsec VPN 服务器**</a>
 
 *其他语言版本: [English](README.md), [简体中文](README-zh.md).*
 
@@ -64,6 +64,12 @@ wget https://git.io/vpnsetup-amzn -O vpnsetup.sh && sudo sh vpnsetup.sh
 
 你的 VPN 登录凭证将会被自动随机生成，并在安装完成后显示在屏幕上。
 
+在安装成功之后，推荐 <a href="docs/ikev2-howto-zh.md" target="_blank">配置 IKEv2</a>：
+
+```bash
+wget https://git.io/ikev2setup -O ikev2.sh && sudo bash ikev2.sh --auto
+```
+
 如需了解其它安装选项，以及如何配置 VPN 客户端，请继续阅读以下部分。
 
 <a name="quick-start-note"></a>
@@ -241,6 +247,12 @@ sh vpnsetup.sh
 ```
 </details>
 
+在安装成功之后，推荐 <a href="docs/ikev2-howto-zh.md" target="_blank">配置 IKEv2</a>：
+
+```bash
+wget https://git.io/ikev2setup -O ikev2.sh && sudo bash ikev2.sh --auto
+```
+
 **注：** 如果无法通过 `wget` 下载，你也可以打开 <a href="vpnsetup.sh" target="_blank">vpnsetup.sh</a>，<a href="vpnsetup_centos.sh" target="_blank">vpnsetup_centos.sh</a> 或者 <a href="vpnsetup_amzn.sh" target="_blank">vpnsetup_amzn.sh</a>，然后点击右方的 **`Raw`** 按钮。按快捷键 `Ctrl-A` 全选， `Ctrl-C` 复制，然后粘贴到你喜欢的编辑器。
 
 ## 下一步

README.md

@@ -64,6 +64,12 @@ wget https://git.io/vpnsetup-amzn -O vpnsetup.sh && sudo sh vpnsetup.sh
 
 Your VPN login details will be randomly generated, and displayed on the screen when finished.
 
+After successful installation, it is recommended to <a href="docs/ikev2-howto.md" target="_blank">set up IKEv2</a>:
+
+```bash
+wget https://git.io/ikev2setup -O ikev2.sh && sudo bash ikev2.sh --auto
+```
+
 For other installation options and how to set up VPN clients, read the sections below.
 
 <a name="quick-start-note"></a>
@@ -241,6 +247,12 @@ sh vpnsetup.sh
 ```
 </details>
 
+After successful installation, it is recommended to <a href="docs/ikev2-howto.md" target="_blank">set up IKEv2</a>:
+
+```bash
+wget https://git.io/ikev2setup -O ikev2.sh && sudo bash ikev2.sh --auto
+```
+
 **Note:** If unable to download via `wget`, you may also open <a href="vpnsetup.sh" target="_blank">vpnsetup.sh</a>, <a href="vpnsetup_centos.sh" target="_blank">vpnsetup_centos.sh</a> or <a href="vpnsetup_amzn.sh" target="_blank">vpnsetup_amzn.sh</a>, and click the **`Raw`** button on the right. Press `Ctrl-A` to select all, `Ctrl-C` to copy, then paste into your favorite editor.
 
 ## Next steps

docs/ikev2-howto-zh.md

@@ -33,10 +33,12 @@ Libreswan 支持通过使用 RSA 签名算法的 X.509 Machine Certificates 来
 你可以使用这个辅助脚本来自动地在 VPN 服务器上配置 IKEv2：
 
 ```
-wget https://bit.ly/ikev2setup -O ikev2.sh && sudo bash ikev2.sh
+wget https://git.io/ikev2setup -O ikev2.sh && sudo bash ikev2.sh --auto
 ```
 
-该 <a href="../extras/ikev2setup.sh" target="_blank">脚本</a> 必须使用 `bash` 而不是 `sh` 运行。按照脚本的提示配置 IKEv2。在完成之后，请转到 [配置 IKEv2 VPN 客户端](#配置-ikev2-vpn-客户端) 和 [已知问题](#已知问题)。如果要为更多的客户端生成证书，只需重新运行脚本。
+该 <a href="../extras/ikev2setup.sh" target="_blank">脚本</a> 必须使用 `bash` 而不是 `sh` 运行。以上命令使用自动模式和默认选项运行辅助脚本。如果你想要自定义 IKEv2 安装选项，请在运行脚本时去掉 `--auto` 参数。
+
+在完成之后，请转到 [配置 IKEv2 VPN 客户端](#配置-ikev2-vpn-客户端)。如果要为更多的客户端生成证书，只需重新运行脚本。
 
 ## 配置 IKEv2 VPN 客户端
 

docs/ikev2-howto.md

@@ -33,10 +33,12 @@ After following this guide, you will be able to connect to the VPN using IKEv2 i
 You may use this helper script to automatically set up IKEv2 on the VPN server:
 
 ```
-wget https://bit.ly/ikev2setup -O ikev2.sh && sudo bash ikev2.sh
+wget https://git.io/ikev2setup -O ikev2.sh && sudo bash ikev2.sh --auto
 ```
 
-The <a href="../extras/ikev2setup.sh" target="_blank">script</a> must be run using `bash`, not `sh`. Follow the prompts to set up IKEv2. When finished, continue to [configure IKEv2 VPN clients](#configure-ikev2-vpn-clients) and check [known issues](#known-issues). If you want to generate certificates for additional VPN clients, just run the script again.
+The <a href="../extras/ikev2setup.sh" target="_blank">script</a> must be run using `bash`, not `sh`. The command above runs the helper script in auto mode, using default options. Remove the `--auto` parameter if you want to customize IKEv2 setup options.
+
+When finished, continue to [configure IKEv2 VPN clients](#configure-ikev2-vpn-clients). If you want to generate certificates for additional VPN clients, just run the script again.
 
 ## Configure IKEv2 VPN clients