diff --git a/README-zh.md b/README-zh.md
index 59a9b0b..1496ea3 100644
--- a/README-zh.md
+++ b/README-zh.md
@@ -153,7 +153,7 @@ sh vpn.sh
## 重要提示
-*其他语言版本: [English](README.md#important-notes), [简体中文](README-zh.md#重要提示).*
+*其他语言版本: [English](README.md#important-notes), [简体中文](README-zh.md#重要提示)。如果你有改进建议,可以在这里提交。*
**Windows 用户** 对于 IPsec/L2TP 模式,在首次连接之前需要 [修改注册表](docs/clients-zh.md#windows-错误-809),以解决 VPN 服务器或客户端与 NAT(比如家用路由器)的兼容问题。
diff --git a/README.md b/README.md
index 91fef31..a542b6d 100644
--- a/README.md
+++ b/README.md
@@ -153,7 +153,7 @@ Enjoy your very own VPN! :sparkles::tada::rocket::sparkles:
## Important notes
-*Read this in other languages: [English](README.md#important-notes), [简体中文](README-zh.md#重要提示).*
+*Read this in other languages: [English](README.md#important-notes), [简体中文](README-zh.md#重要提示). Have a suggestion? Submit feedback.*
**Windows users**: For IPsec/L2TP mode, a [one-time registry change](docs/clients.md#windows-error-809) is required if the VPN server or client is behind NAT (e.g. home router).
diff --git a/aws/README-zh.md b/aws/README-zh.md
index 34f19be..a282e9c 100644
--- a/aws/README-zh.md
+++ b/aws/README-zh.md
@@ -1,6 +1,6 @@
# 使用 CloudFormation 在 Amazon EC2 上部署
-*其他语言版本: [English](README.md), [简体中文](README-zh.md).*
+*其他语言版本: [English](README.md), [简体中文](README-zh.md)。如果你有改进建议,可以在这里提交。*
使用这个模板,你可以在 Amazon Elastic Compute Cloud(Amazon EC2)上快速搭建一个 IPsec VPN 服务器。在继续之前,请参见 EC2 [定价细节](https://aws.amazon.com/cn/ec2/pricing/on-demand/)。在部署中使用 `t2.micro` 服务器实例可能符合 [AWS 免费套餐](https://aws.amazon.com/cn/free/) 的资格。
diff --git a/aws/README.md b/aws/README.md
index f9f51a3..e215dd3 100644
--- a/aws/README.md
+++ b/aws/README.md
@@ -1,6 +1,6 @@
# Deploy to Amazon EC2 using CloudFormation
-*Read this in other languages: [English](README.md), [简体中文](README-zh.md).*
+*Read this in other languages: [English](README.md), [简体中文](README-zh.md). Have a suggestion? Submit feedback.*
This template will create a fully-working IPsec VPN server on Amazon Elastic Compute Cloud (Amazon EC2). Please make sure to check the EC2 [pricing details](https://aws.amazon.com/ec2/pricing/on-demand/) before continuing. Using a `t2.micro` server instance for your deployment may qualify for the [AWS Free Tier](https://aws.amazon.com/free/).
diff --git a/azure/README-zh.md b/azure/README-zh.md
index 5deef03..db51229 100644
--- a/azure/README-zh.md
+++ b/azure/README-zh.md
@@ -1,6 +1,6 @@
# 在 Microsoft Azure 上部署
-*其他语言版本: [English](README.md), [简体中文](README-zh.md).*
+*其他语言版本: [English](README.md), [简体中文](README-zh.md)。如果你有改进建议,可以在这里提交。*
使用这个模板,你可以在 Microsoft Azure Cloud 上快速搭建一个 VPN 服务器 ([定价细节](https://azure.microsoft.com/zh-cn/pricing/details/virtual-machines/))。
diff --git a/azure/README.md b/azure/README.md
index effbf31..e342563 100644
--- a/azure/README.md
+++ b/azure/README.md
@@ -1,6 +1,6 @@
# Deploy to Microsoft Azure
-*Read this in other languages: [English](README.md), [简体中文](README-zh.md).*
+*Read this in other languages: [English](README.md), [简体中文](README-zh.md). Have a suggestion? Submit feedback.*
This template will create a fully working VPN server on the Microsoft Azure Cloud ([pricing details](https://azure.microsoft.com/en-us/pricing/details/virtual-machines/)).
diff --git a/docs/advanced-usage-zh.md b/docs/advanced-usage-zh.md
index c376a46..89a79c9 100644
--- a/docs/advanced-usage-zh.md
+++ b/docs/advanced-usage-zh.md
@@ -1,6 +1,6 @@
# 高级用法
-*其他语言版本: [English](advanced-usage.md), [简体中文](advanced-usage-zh.md).*
+*其他语言版本: [English](advanced-usage.md), [简体中文](advanced-usage-zh.md)。如果你有改进建议,可以在这里提交。*
* [使用其他的 DNS 服务器](#使用其他的-dns-服务器)
* [域名和更改服务器 IP](#域名和更改服务器-ip)
diff --git a/docs/advanced-usage.md b/docs/advanced-usage.md
index 71d5568..80f204d 100644
--- a/docs/advanced-usage.md
+++ b/docs/advanced-usage.md
@@ -1,6 +1,6 @@
# Advanced Usage
-*Read this in other languages: [English](advanced-usage.md), [简体中文](advanced-usage-zh.md).*
+*Read this in other languages: [English](advanced-usage.md), [简体中文](advanced-usage-zh.md). Have a suggestion? Submit feedback.*
* [Use alternative DNS servers](#use-alternative-dns-servers)
* [DNS name and server IP changes](#dns-name-and-server-ip-changes)
diff --git a/docs/clients-xauth-zh.md b/docs/clients-xauth-zh.md
index 7cf4ad5..5899810 100644
--- a/docs/clients-xauth-zh.md
+++ b/docs/clients-xauth-zh.md
@@ -1,6 +1,6 @@
# 配置 IPsec/XAuth VPN 客户端
-*其他语言版本: [English](clients-xauth.md), [简体中文](clients-xauth-zh.md).*
+*其他语言版本: [English](clients-xauth.md), [简体中文](clients-xauth-zh.md)。如果你有改进建议,可以在这里提交。*
**注:** 你也可以使用 [IKEv2](ikev2-howto-zh.md)(推荐)或者 [IPsec/L2TP](clients-zh.md) 模式连接。
diff --git a/docs/clients-xauth.md b/docs/clients-xauth.md
index 48c9f0a..7b7d021 100644
--- a/docs/clients-xauth.md
+++ b/docs/clients-xauth.md
@@ -1,6 +1,6 @@
# Configure IPsec/XAuth VPN Clients
-*Read this in other languages: [English](clients-xauth.md), [简体中文](clients-xauth-zh.md).*
+*Read this in other languages: [English](clients-xauth.md), [简体中文](clients-xauth-zh.md). Have a suggestion? Submit feedback.*
**Note:** You may also connect using [IKEv2](ikev2-howto.md) (recommended) or [IPsec/L2TP](clients.md) mode.
diff --git a/docs/clients-zh.md b/docs/clients-zh.md
index ddb2c17..70bcfc1 100644
--- a/docs/clients-zh.md
+++ b/docs/clients-zh.md
@@ -1,6 +1,6 @@
# 配置 IPsec/L2TP VPN 客户端
-*其他语言版本: [English](clients.md), [简体中文](clients-zh.md).*
+*其他语言版本: [English](clients.md), [简体中文](clients-zh.md)。如果你有改进建议,可以在这里提交。*
**注:** 你也可以使用 [IKEv2](ikev2-howto-zh.md)(推荐)或者 [IPsec/XAuth](clients-xauth-zh.md) 模式连接。
@@ -237,7 +237,7 @@ Fedora 28(和更新版本)和 CentOS 8/7 用户可以使用 [IPsec/XAuth](cl
## 故障排除
-*其他语言版本: [English](clients.md#troubleshooting), [简体中文](clients-zh.md#故障排除).*
+*其他语言版本: [English](clients.md#troubleshooting), [简体中文](clients-zh.md#故障排除)。如果你有改进建议,可以在这里提交。*
**另见:** [检查日志及 VPN 状态](#检查日志及-vpn-状态),[IKEv2 故障排除](ikev2-howto-zh.md#故障排除) 和 [高级用法](advanced-usage-zh.md)。
diff --git a/docs/clients.md b/docs/clients.md
index dde89ec..00b1518 100644
--- a/docs/clients.md
+++ b/docs/clients.md
@@ -1,6 +1,6 @@
# Configure IPsec/L2TP VPN Clients
-*Read this in other languages: [English](clients.md), [简体中文](clients-zh.md).*
+*Read this in other languages: [English](clients.md), [简体中文](clients-zh.md). Have a suggestion? Submit feedback.*
**Note:** You may also connect using [IKEv2](ikev2-howto.md) (recommended) or [IPsec/XAuth](clients-xauth.md) mode.
@@ -236,7 +236,7 @@ First check [here](https://github.com/nm-l2tp/NetworkManager-l2tp/wiki/Prebuilt-
## Troubleshooting
-*Read this in other languages: [English](clients.md#troubleshooting), [简体中文](clients-zh.md#故障排除).*
+*Read this in other languages: [English](clients.md#troubleshooting), [简体中文](clients-zh.md#故障排除). Have a suggestion? Submit feedback.*
**See also:** [Check logs and VPN status](#check-logs-and-vpn-status), [IKEv2 troubleshooting](ikev2-howto.md#troubleshooting) and [Advanced usage](advanced-usage.md).
diff --git a/docs/ikev2-howto-zh.md b/docs/ikev2-howto-zh.md
index 0b55ea8..d77d082 100644
--- a/docs/ikev2-howto-zh.md
+++ b/docs/ikev2-howto-zh.md
@@ -1,6 +1,6 @@
# IKEv2 VPN 配置和使用指南
-*其他语言版本: [English](ikev2-howto.md), [简体中文](ikev2-howto-zh.md).*
+*其他语言版本: [English](ikev2-howto.md), [简体中文](ikev2-howto-zh.md)。如果你有改进建议,可以在这里提交。*
**注:** 你也可以使用 [IPsec/L2TP](clients-zh.md) 或者 [IPsec/XAuth](clients-xauth-zh.md) 模式连接。
@@ -102,7 +102,7 @@ To customize IKEv2 or client options, run this script without arguments.
## 配置 IKEv2 VPN 客户端
-*其他语言版本: [English](ikev2-howto.md#configure-ikev2-vpn-clients), [简体中文](ikev2-howto-zh.md#配置-ikev2-vpn-客户端).*
+*其他语言版本: [English](ikev2-howto.md#configure-ikev2-vpn-clients), [简体中文](ikev2-howto-zh.md#配置-ikev2-vpn-客户端)。如果你有改进建议,可以在这里提交。*
**注:** 客户端配置文件的密码可以在 IKEv2 辅助脚本的输出中找到。如果你想要添加或者导出 IKEv2 客户端,只需重新运行[辅助脚本](#使用辅助脚本配置-ikev2)。使用参数 `-h` 显示使用信息。
@@ -756,7 +756,7 @@ sudo ikev2.sh --revokeclient [client name]
## 故障排除
-*其他语言版本: [English](ikev2-howto.md#troubleshooting), [简体中文](ikev2-howto-zh.md#故障排除).*
+*其他语言版本: [English](ikev2-howto.md#troubleshooting), [简体中文](ikev2-howto-zh.md#故障排除)。如果你有改进建议,可以在这里提交。*
**另见:** [检查日志及 VPN 状态](clients-zh.md#检查日志及-vpn-状态),[IKEv1 故障排除](clients-zh.md#故障排除) 和 [高级用法](advanced-usage-zh.md)。
diff --git a/docs/ikev2-howto.md b/docs/ikev2-howto.md
index 1c74cf6..d0413b1 100644
--- a/docs/ikev2-howto.md
+++ b/docs/ikev2-howto.md
@@ -1,6 +1,6 @@
# Guide: How to Set Up and Use IKEv2 VPN
-*Read this in other languages: [English](ikev2-howto.md), [简体中文](ikev2-howto-zh.md).*
+*Read this in other languages: [English](ikev2-howto.md), [简体中文](ikev2-howto-zh.md). Have a suggestion? Submit feedback.*
**Note:** You may also connect using [IPsec/L2TP](clients.md) or [IPsec/XAuth](clients-xauth.md) mode.
@@ -102,7 +102,7 @@ To customize IKEv2 or client options, run this script without arguments.
## Configure IKEv2 VPN clients
-*Read this in other languages: [English](ikev2-howto.md#configure-ikev2-vpn-clients), [简体中文](ikev2-howto-zh.md#配置-ikev2-vpn-客户端).*
+*Read this in other languages: [English](ikev2-howto.md#configure-ikev2-vpn-clients), [简体中文](ikev2-howto-zh.md#配置-ikev2-vpn-客户端). Have a suggestion? Submit feedback.*
**Note:** The password for client configuration files can be found in the output of the IKEv2 helper script. If you want to add or export IKEv2 client(s), just run the [helper script](#set-up-ikev2-using-helper-script) again. Use option `-h` to show usage information.
@@ -758,7 +758,7 @@ Before continuing, you **must** restart the IPsec service. The IKEv2 setup on th
## Troubleshooting
-*Read this in other languages: [English](ikev2-howto.md#troubleshooting), [简体中文](ikev2-howto-zh.md#故障排除).*
+*Read this in other languages: [English](ikev2-howto.md#troubleshooting), [简体中文](ikev2-howto-zh.md#故障排除). Have a suggestion? Submit feedback.*
**See also:** [Check logs and VPN status](clients.md#check-logs-and-vpn-status), [IKEv1 troubleshooting](clients.md#troubleshooting) and [Advanced usage](advanced-usage.md).
diff --git a/docs/manage-users-zh.md b/docs/manage-users-zh.md
index 2afd9f1..b8aa810 100644
--- a/docs/manage-users-zh.md
+++ b/docs/manage-users-zh.md
@@ -1,6 +1,6 @@
# 管理 VPN 用户
-*其他语言版本: [English](manage-users.md), [简体中文](manage-users-zh.md).*
+*其他语言版本: [English](manage-users.md), [简体中文](manage-users-zh.md)。如果你有改进建议,可以在这里提交。*
在默认情况下,将只创建一个用于 VPN 登录的用户账户。如果你需要查看或管理 IPsec/L2TP 和 IPsec/XAuth ("Cisco IPsec") 模式的用户,请阅读本文档。对于 IKEv2,参见 [管理客户端证书](ikev2-howto-zh.md#管理客户端证书)。
diff --git a/docs/manage-users.md b/docs/manage-users.md
index 221dce0..12878d3 100644
--- a/docs/manage-users.md
+++ b/docs/manage-users.md
@@ -1,6 +1,6 @@
# Manage VPN Users
-*Read this in other languages: [English](manage-users.md), [简体中文](manage-users-zh.md).*
+*Read this in other languages: [English](manage-users.md), [简体中文](manage-users-zh.md). Have a suggestion? Submit feedback.*
By default, a single user account for VPN login is created. If you wish to view or manage users for the IPsec/L2TP and IPsec/XAuth ("Cisco IPsec") modes, read this document. For IKEv2, see [Manage client certificates](ikev2-howto.md#manage-client-certificates).
diff --git a/docs/uninstall-zh.md b/docs/uninstall-zh.md
index 57a874b..6e5ba96 100644
--- a/docs/uninstall-zh.md
+++ b/docs/uninstall-zh.md
@@ -1,6 +1,6 @@
# 卸载 VPN
-*其他语言版本: [English](uninstall.md), [简体中文](uninstall-zh.md).*
+*其他语言版本: [English](uninstall.md), [简体中文](uninstall-zh.md)。如果你有改进建议,可以在这里提交。*
* [使用辅助脚本卸载 VPN](#使用辅助脚本卸载-vpn)
* [手动卸载 VPN](#手动卸载-vpn)
diff --git a/docs/uninstall.md b/docs/uninstall.md
index 7299a7f..6ceea29 100644
--- a/docs/uninstall.md
+++ b/docs/uninstall.md
@@ -1,6 +1,6 @@
# Uninstall the VPN
-*Read this in other languages: [English](uninstall.md), [简体中文](uninstall-zh.md).*
+*Read this in other languages: [English](uninstall.md), [简体中文](uninstall-zh.md). Have a suggestion? Submit feedback.*
* [Uninstall using helper script](#uninstall-using-helper-script)
* [Manually uninstall the VPN](#manually-uninstall-the-vpn)