Update free-courses-pt_BR.md (#3292)

free-courses-pt_BR.md

@@ -17,6 +17,7 @@
 * [Node.js](#nodejs)
 * [PHP](#php)
 * [Python](#python)
+* [React](#react)
 * [Ruby](#ruby)
 * [Shell](#shell)
 * [Swift](#swift)
@@ -137,6 +138,11 @@
 * [Python para Iniciantes](https://www.udemy.com/python-para-iniciantes/) - Tiago Miguel (Udemy)
 
 
+### React
+
+* [React, Redux e integração de APIs](https://www.udemy.com/react-redux-e-integracao-de-apis/) - Nataniel Paiva (Udemy)
+
+
 ### Ruby
 
 * [Curso de Ruby on Rails para Iniciantes](https://www.youtube.com/playlist?list=PLe3LRfCs4go-mkvHRMSXEOG-HDbzesyaP) - Jackson Pires (YouTube)