add 'AN INTRODUCTION TO PROGRAMMING IN GO' link

free-programming-books-ko.md

@@ -2,6 +2,7 @@
 
 * [Assembly Language](#assembly-language)
 * [GIT](#git)
+* [Go](#go)
 * [HTML5](#html5)
 * [JavaScript](#javascript)
     * [Node.js](#nodejs)
@@ -16,6 +17,9 @@
 * [Pro Git 한글 번역](http://git-scm.com/book/ko/)
 * [GitHub Flavored Markdown](https://help.github.com/articles/github-flavored-markdown)
 
+###Go
+* [AN INTRODUCTION TO PROGRAMMING IN GO 한글 번역](http://www.codingnuri.com/golang-book/index.html)
+
 ###HTML5
 * [HTML5, CSS and Javascript](http://fromyou.tistory.com/581)