Update free-programming-books-pt_BR.md with Architecture book (#9887)

* Update free-programming-books-pt_BR.md with Architecture book

* Fixing pipeline

* Adding blank line

* Removing unnecessary commentary

* Update books/free-programming-books-pt_BR.md

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

---------

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

books/free-programming-books-pt_BR.md

@@ -166,6 +166,7 @@
 #### Arquitetura de Software
 
 * [ASP.NET Core architecture](https://docs.microsoft.com/pt-br/dotnet/architecture/modern-web-apps-azure/) (PDF)
+* [Melhores Práticas de Arquitetura de Software na era da Nuvem](https://leanpub.com/manual-arquitetura-software) (Necessário criar uma conta (gratuita) no Leanpub para baixar o livro completo nos formatos PDF, EPUB, MOBI ou pelo próprio site)
 * [Microservices architecture](https://docs.microsoft.com/pt-br/dotnet/architecture/microservices/) (PDF)
 * [Modernizing existing .NET apps](https://docs.microsoft.com/pt-br/dotnet/architecture/modernize-with-azure-containers/) (PDF)