Update pdf link

Author: mohanson

doc/en/markdown/content/foreword.md

@@ -18,10 +18,10 @@ The course primarily uses python language. In the first chapter, we will use pab
 This book is available in Chinese and English. You can choose to read online or download offline according to your preference.
 
 - [English - Markdown](https://github.com/mohanson/pxsol/tree/master/doc/en/markdown)
-- [English - PDF](https://github.com/mohanson/pxsol/releases/download/v1.0.0/pxsol-en.pdf)
+- [English - PDF](https://github.com/mohanson/pxsol/releases/download/v1.1.4/pxsol-en.pdf)
 - [English - Web](https://pxsol.vercel.app/)
 - [中文 - Markdown](https://github.com/mohanson/pxsol/tree/master/doc/zh/markdown)
-- [中文 - PDF](https://github.com/mohanson/pxsol/releases/download/v1.0.0/pxsol-zh.pdf)
+- [中文 - PDF](https://github.com/mohanson/pxsol/releases/download/v1.1.4/pxsol-zh.pdf)
 - [中文 - Web](http://accu.cc/content/solana/foreword/)
 
 **Small Sponsorship**

doc/zh/markdown/content/foreword.md

@@ -20,10 +20,10 @@
 本书提供中文和英文版. 您可以根据自己的喜好选择在线阅读或者离线下载.
 
 - [English - Markdown](https://github.com/mohanson/pxsol/tree/master/doc/en/markdown)
-- [English - PDF](https://github.com/mohanson/pxsol/releases/download/v1.0.0/pxsol-en.pdf)
+- [English - PDF](https://github.com/mohanson/pxsol/releases/download/v1.1.4/pxsol-en.pdf)
 - [English - Web](https://pxsol.vercel.app/)
 - [中文 - Markdown](https://github.com/mohanson/pxsol/tree/master/doc/zh/markdown)
-- [中文 - PDF](https://github.com/mohanson/pxsol/releases/download/v1.0.0/pxsol-zh.pdf)
+- [中文 - PDF](https://github.com/mohanson/pxsol/releases/download/v1.1.4/pxsol-zh.pdf)
 - [中文 - Web](http://accu.cc/content/solana/foreword/)
 
 **小额赞助**