Update free-programming-books-id.md (#3749)

* Update free-programming-books-id.md

* Update free-programming-books-id.md

free-programming-books-id.md

@@ -25,7 +25,7 @@
 
 * [Belajar Git untuk Pemula](https://github.com/petanikode/belajar-git)
 * [Kontrol Versi dengan Git](https://leanpub.com/kontrol-versi-git)
-* [Pro Git 1st Edition](https://git-scm.com/book/id/v1)
+* [Pro Git 2nd Edition](https://git-scm.com/book/id/v2)
 
 
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