Update free-courses-pt_BR.md (#8702)

* Update free-courses-pt_BR.md

* Apply suggestions from code review

Co-authored-by: Sharan J <50091666+shrn01@users.noreply.github.com>

courses/free-courses-pt_BR.md

@@ -117,7 +117,7 @@
 
 ### Flutter
 
-* [Criando seu primeiro App com Flutter](https://app.balta.io/courses/7184) - Andre Baltieri (balta.io)
+* [Criando seu primeiro App com Flutter](https://balta.io/cursos/criando-seu-primeiro-app-com-flutter) - Andre Baltieri (balta.io)
 * [Curso Arquitetura no Flutter - 2022](https://www.youtube.com/playlist?list=PLRpTFz5_57cvCYRhHUui2Bis-5Ybh78TS) - Deivid Willyan (YouTube)
 * [Curso COMPLETO de Flutter](https://youtube.com/playlist?list=PLlBnICoI-g-d-J57QIz6Tx5xtUDGQdBFB) - Flutterando (YouTube)
 * [Curso Flutter Básico \[NV1\] - 2022](https://www.youtube.com/playlist?list=PLRpTFz5_57cvo0CHf-AnojOvpznz8YO7S) - Deivid Willyan (YouTube)
@@ -205,7 +205,6 @@
 * [Curso de Javascript Completo](https://www.youtube.com/playlist?list=PL2Fdisxwzt_d590u3uad46W-kHA0PTjjw) - Programação Web
 * [Curso Grátis de JavaScript e ECMAScript para Iniciantes](https://www.youtube.com/playlist?list=PLHz_AreHm4dlsK3Nr9GVvXCbpQyHQl1o1) - Gustavo Guanabara (Curso em Vídeo)
 * [Curso Intensivo de Next.js & React](https://www.cod3r.com.br/courses/curso-intensivo-next-react) - Leonardo Leitão (Cod3r)
-* [Curso Starter ES6, Node, React e React Native](https://app.rocketseat.com.br/discover/courses) - Rocketseat
 * [Fast & Furious](https://www.youtube.com/playlist?list=PLy5T05I_eQYOoUz2TtAqq35RLCc-xBZCe) - Codecasts
 
 
@@ -391,7 +390,7 @@
 
 #### Angular
 
-* [Começando com Angular](https://app.balta.io/courses/7181) - Andre Baltieri (balta.io)
+* [Começando com Angular](https://balta.io/cursos/comecando-com-angular) - Andre Baltieri (balta.io)
 * [Curso Angular 9](https://www.youtube.com/playlist?list=PLdPPE0hUkt0rPyAkdhHIIquKbwrGUkvw3) - Cod3r (YouTube)
 * [Curso de Angular](https://loiane.training/curso/angular/) - Loiane Groner