Updating ptBR courses (#3993)

* Update free-courses-pt_BR.md

* alphabetize, remove unneeded youtube annotations

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

free-courses-pt_BR.md

@@ -153,8 +153,9 @@
 
 ### JavaScript
 
-* [Curso Grátis de JavaScript e ECMAScript para Iniciantes](https://www.youtube.com/playlist?list=PLHz_AreHm4dlsK3Nr9GVvXCbpQyHQl1o1) - Curso em Vídeo (YouTube)
-* [Fast & Furious](https://www.youtube.com/playlist?list=PLy5T05I_eQYOoUz2TtAqq35RLCc-xBZCe) - Codecasts (YouTube)
+* [Curso Grátis de JavaScript e ECMAScript para Iniciantes](https://www.youtube.com/playlist?list=PLHz_AreHm4dlsK3Nr9GVvXCbpQyHQl1o1) - Curso em Vídeo
+* [Curso Starter ES6, Node, React e React Native](https://app.rocketseat.com.br/starter) - Rocketseat
+* [Fast & Furious](https://www.youtube.com/playlist?list=PLy5T05I_eQYOoUz2TtAqq35RLCc-xBZCe) - Codecasts
 
 
 ### Jekyll