Update docs

README-zh.md

@@ -10,7 +10,7 @@
 
 另见：[WireGuard](https://github.com/hwdsl2/wireguard-install/blob/master/README-zh.md) 和 [IPsec VPN](https://github.com/hwdsl2/setup-ipsec-vpn/blob/master/README-zh.md) 服务器一键安装脚本。
 
-**[» :book: Book: Build Your Own VPN Server](docs/vpn-book.md)** [[English](https://books2read.com/vpnguide?store=amazon) | [中文](https://books2read.com/vpnguidezh) | [Español](https://books2read.com/vpnguidees?store=amazon) | [Deutsch](https://books2read.com/vpnguidede?store=amazon) | [Français](https://books2read.com/vpnguidefr?store=amazon) | [Italiano](https://books2read.com/vpnguideit?store=amazon) | [NL](https://books2read.com/vpnguidenl?store=amazon) | [PT](https://books2read.com/vpnguidept?store=amazon) | [日本語](https://books2read.com/vpnguideja?store=amazon)]
+**[» :book: Book: 搭建自己的 VPN 服务器分步指南](docs/vpn-book-zh.md)** [[中文](https://books2read.com/vpnguidezh) | [English](https://books2read.com/vpnguide?store=amazon) | [Español](https://books2read.com/vpnguidees?store=amazon) | [Deutsch](https://books2read.com/vpnguidede?store=amazon) | [Français](https://books2read.com/vpnguidefr?store=amazon) | [Italiano](https://books2read.com/vpnguideit?store=amazon) | [NL](https://books2read.com/vpnguidenl?store=amazon) | [PT](https://books2read.com/vpnguidept?store=amazon) | [日本語](https://books2read.com/vpnguideja?store=amazon)]
 
 ## 功能特性
 
@@ -153,7 +153,7 @@ To customize options, you may also run this script without arguments.
 
 **[配置 OpenVPN 客户端](docs/clients-zh.md)**
 
-**阅读 [:book: VPN book](https://ko-fi.com/post/Support-this-project-and-get-access-to-supporter-o-X8X5FVFZC) 以访问 [额外内容](https://ko-fi.com/post/Support-this-project-and-get-access-to-supporter-o-X8X5FVFZC)。**
+**阅读 [:book: VPN book](docs/vpn-book-zh.md) 以访问 [额外内容](https://ko-fi.com/post/Support-this-project-and-get-access-to-supporter-o-X8X5FVFZC)。**
 
 开始使用自己的专属 VPN! :sparkles::tada::rocket::sparkles: