Update docs

- Fix Shrew Soft VPN Client instructions
- Tested and working in Windows 7
- Closes #326
- Closes #379

docs/clients-xauth-zh.md

@@ -25,6 +25,7 @@ IPsec/XAuth 模式也称为 "Cisco IPsec"。该模式通常能够比 IPsec/L2TP
 1. 单击工具栏中的 **Add (+)** 按钮。
 1. 在 **Host Name or IP Address** 字段中输入`你的 VPN 服务器 IP`。
 1. 单击 **Authentication** 选项卡，从 **Authentication Method** 下拉菜单中选择 **Mutual PSK + XAuth**。
+1. 在 **Local Identity** 子选项卡中，从 **Identification Type** 下拉菜单中选择 **IP Address**。
 1. 单击 **Credentials** 子选项卡，并在 **Pre Shared Key** 字段中输入`你的 VPN IPsec PSK`。
 1. 单击 **Phase 1** 选项卡，从 **Exchange Type** 下拉菜单中选择 **main**。
 1. 单击 **Phase 2** 选项卡，从 **HMAC Algorithm** 下拉菜单中选择 **sha1**。

docs/clients-xauth.md

@@ -25,7 +25,8 @@ IPsec/XAuth mode is also called "Cisco IPsec". This mode is generally faster tha
 1. Click the **Add (+)** button on toolbar.
 1. Enter `Your VPN Server IP` in the **Host Name or IP Address** field.
 1. Click the **Authentication** tab. Select **Mutual PSK + XAuth** from the **Authentication Method** drop-down menu.
-1. Click the **Credentials** tab below. Enter `Your VPN IPsec PSK` in the **Pre Shared Key** field.
+1. Under the **Local Identity** sub-tab, select **IP Address** from the **Identification Type** drop-down menu.
+1. Click the **Credentials** sub-tab. Enter `Your VPN IPsec PSK` in the **Pre Shared Key** field.
 1. Click the **Phase 1** tab. Select **main** from the **Exchange Type** drop-down menu.
 1. Click the **Phase 2** tab. Select **sha1** from the **HMAC Algorithm** drop-down menu.
 1. Click **Save** to save the VPN connection details.