Add resources (#3312)

* Update free-courses-pt_BR.md

* Update free-courses-pt_BR.md

* Update free-courses-pt_BR.md

* Uppercase words

* Update free-courses-pt_BR.md

free-courses-pt_BR.md

@@ -2,6 +2,7 @@
 
 * [Android](#android)
 * [C](#c)
+* [C Sharp](#c-sharp)
 * [CSS](#css)
 * [Dart](#dart)
 * [Database](#database)
@@ -36,6 +37,12 @@
 * [Aprenda C e C++ - Fundamentos Para Lógica de Programação](https://www.udemy.com/c-e-c-fundamentos-para-logica-de-programacao/) - One Day Code (Udemy)
 
 
+### C Sharp
+
+* [C# e Windows Forms: Consultar CEP no WebService dos Correios](https://www.udemy.com/webservice-correios/) - Gilseone Moraes, Training4All Cursos (Udemy)
+* [Manipulando Listas Genéricas em C#](https://www.udemy.com/listas-genericas-em-csharp/) - Gilseone Moraes, Training4All Cursos (Udemy)
+
+
 ### CSS
 
 * [Introdução à linguagem CSS](https://www.udemy.com/introducao-a-linguagem-css/) - Diego Mariano (Udemy)