add NodeJS free-courses-pt_BR.md (#7923)

* add free nodejs content

* fix line

* adjustments

courses/free-courses-pt_BR.md

@@ -248,6 +248,8 @@
 * [Do Zero A Produção: Aprenda A Construir Uma API Node.Js Com Typescript](https://www.youtube.com/playlist?list=PLz_YTBuxtxt6_Zf1h-qzNsvVt46H8ziKh) - Waldemar Neto Dev Lab (YouTube)
 * [Imersão em desenvolvimento de APIs com Node.js](https://erickwendel.teachable.com/p/node-js-para-iniciantes-nodebr) - Erick Wendel (Teachable)
 * [RESTful com Node.js e Restify](https://www.youtube.com/playlist?list=PLy5T05I_eQYO5Y3S3kVqBxQzkUNllPazF) - Codecasts (YouTube)
+* [Serie API NodeJS](https://www.youtube.com/playlist?list=PL85ITvJ7FLoiXVwHXeOsOuVppGbBzo2dp) - Diego Fernandes (Rocketseat)
+* [Testes no NodeJS aplicando TDD com Jest](https://www.youtube.com/watch?v=2G_mWfG0DZE&list=PL85ITvJ7FLoh7QBmTVzuNYvZaYPYwDmei) - Diego Fernandes (Rocketseat)
 
 
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