update node&react sources

books/free-programming-books-langs.md

@@ -1304,6 +1304,8 @@ That section got so big, we decided to split it into its own file, the [BY SUBJE
 * [The Node Beginner Book](http://nodebeginner.org)
 * [The Node.js Handbook](https://flaviocopes.com/page/node-handbook/) - Flavio Copes (PDF, EPUB, Kindle) *(email address requested)*
 
+* [Data brokering with nodejs - learn Node ETL](https://heynode.com) - Documentations & videos 
+*(Sign up requested)*
 
 #### Om
 

courses/free-courses-vi.md

@@ -211,6 +211,7 @@
 * [React.js Cơ Bản](https://www.youtube.com/playlist?list=PLzrVYRai0riSPcINVFvaCaM7Ul55DzpLd)
 * [ReactJS - Demo các project trong khóa học](https://www.youtube.com/playlist?list=PLv6GftO355Av08p6Zi1I67VYw47nMS8xO) - ZendVN - Học Lập Trình Online
 * [Redux Cơ Bản](https://www.youtube.com/playlist?list=PLkY6Xj8Sg8-tmotihDcWZN0LvtXFyxmRZ) - CodersX
+* [Khóa học Fullstack SERN (SQL, Express.js, React.js, Node.js) Web Developer](https://youtube.com/playlist?list=PLncHg6Kn2JT6E38Z3kit9Hnif1xC_9VqI) - Hỏi dân IT
 
 
 ### Ruby