Add Go book, check_urls=free-programming-books-pt_BR.md (#5115)

free-programming-books-pt_BR.md

@@ -132,6 +132,7 @@
 
 ### GO
 
+* [Aprenda Go com Testes](https://larien.gitbook.io/aprenda-go-com-testes) - Lauren Ferreira
 * [Go - hands on](https://github.com/go-br/estudos)