Improve link and add author (#10412)

* Improve link and add author

* remove github beside author

Co-authored-by: Eric Hellman <eric@hellman.net>

---------

Co-authored-by: Eric Hellman <eric@hellman.net>

books/free-programming-books-zh.md

@@ -393,7 +393,7 @@
 * [Go 语言设计与实现](https://draveness.me/golang) - draveness
 * [Go 语言实战笔记](https://github.com/rujews/go-in-action-notes)
 * [Go 指南](https://tour.go-zh.org/list) (《A Tour of Go》中文版)
-* [Go Web 编程](https://github.com/astaxie/build-web-application-with-golang)
+* [Go Web 编程](https://astaxie.gitbooks.io/build-web-application-with-golang/content/zh/) - astaxie
 * [Go实战开发](https://github.com/astaxie/go-best-practice)
 * [Go语言博客实践](https://github.com/achun/Go-Blog-In-Action)
 * [Java程序员的Golang入门指南](http://blog.csdn.net/dc_726/article/details/46565241)