Update docs

README-ja.md

@@ -10,9 +10,7 @@ IPsec VPNはネットワークトラフィックを暗号化し、インター
 
 IPsecサーバーとして[Libreswan](https://libreswan.org/)を使用し、L2TPプロバイダーとして[xl2tpd](https://github.com/xelerance/xl2tpd)を使用します。
 
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-#### [» :book: FREE eBook (limited time): Privacy Tools in the Age of AI](https://books2read.com/privacy?store=amazon)
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+**[» :book: 本：Privacy Tools in the Age of AI](https://books2read.com/privacy?store=amazon)  [VPNサーバーの構築方法](docs/vpn-book.md)**
 
 ## クイックスタート
 

README-zh.md

@@ -10,9 +10,7 @@ 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 [Libreswan](https://libreswan.org/) 作为 IPsec 服务器，以及 [xl2tpd](https://github.com/xelerance/xl2tpd) 作为 L2TP 提供者。
 
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-#### [» :book: 限时免费电子书：Privacy Tools in the Age of AI](https://books2read.com/privacy?store=amazon)
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+**[» :book: Book: Privacy Tools in the Age of AI](https://books2read.com/privacy?store=amazon)  [搭建自己的 VPN 服务器分步指南](docs/vpn-book-zh.md)**
 
 ## 快速开始
 

README.md

@@ -10,9 +10,7 @@ An IPsec VPN encrypts your network traffic, so that nobody between you and the V
 
 We will use [Libreswan](https://libreswan.org/) as the IPsec server, and [xl2tpd](https://github.com/xelerance/xl2tpd) as the L2TP provider.
 
----
-#### [» :book: FREE eBook (limited time): Privacy Tools in the Age of AI](https://books2read.com/privacy?store=amazon)
----
+**[» :book: Book: Privacy Tools in the Age of AI](https://books2read.com/privacy?store=amazon)  [Build Your Own VPN Server](docs/vpn-book.md)**
 
 ## Quick start
 

docs/vpn-book-zh.md

@@ -1,6 +1,6 @@
 [« 返回主页](../README-zh.md) | [English](vpn-book.md) | [中文](vpn-book-zh.md)
 
-## 限时免费电子书：Privacy Tools in the Age of AI
+## 新：Privacy Tools in the Age of AI
 
 了解如何在人工智能时代构建更高级别的隐私保护。[在 Amazon 上提供电子书](https://books2read.com/privacy?store=amazon)、平装本和有声读物格式。
 

docs/vpn-book.md

@@ -1,6 +1,6 @@
 [« Back to home page](../README.md) | [English](vpn-book.md) | [中文](vpn-book-zh.md)
 
-## FREE eBook (limited time): Privacy Tools in the Age of AI
+## New: Privacy Tools in the Age of AI
 
 Learn how to build your next-level privacy in the age of AI. [Available on Amazon](https://books2read.com/privacy?store=amazon) in eBook, paperback and audiobook formats.