Update free-courses-pt_BR.md (#6557)

* Update free-courses-pt_BR.md

* fix lint

Co-authored-by: ImVector <59611597+LuigiImVector@users.noreply.github.com>

* remove space

Co-authored-by: Eric Hellman <eric@hellman.net>
Co-authored-by: ImVector <59611597+LuigiImVector@users.noreply.github.com>

courses/free-courses-pt_BR.md

@@ -84,7 +84,7 @@
 
 ### Database
 
-* [Curso de Banco de Dados MySQL](https://www.youtube.com/playlist?list=PLHz_AreHm4dkBs-795Dsgvau_ekxg8g1r) - Curso em Vídeo (Youtube)
+* [Curso de Banco de Dados MySQL](https://www.youtube.com/playlist?list=PLHz_AreHm4dkBs-795Dsgvau_ekxg8g1r) - Gustavo Guanabara, Curso em Video (YouTube)
 * [Curso de Modelagem de Dados](https://www.youtube.com/playlist?list=PLucm8g_ezqNoNHU8tjVeHmRGBFnjDIlxD) - Bosón Treinamentos (YouTube)
 * [Introdução ao MySQL e phpMyAdmin](https://www.udemy.com/mysql-phpmyadmin/) - Fernando Carmo, Mestres BI (Udemy)