Add Advanced Web Development Course (#10007)

* Add new SQL series

* Update free-courses-vi.md

minor adjustment

* add web development course

* Add Advanced Web Development Course

courses/free-courses-vi.md

@@ -304,6 +304,7 @@
 
 ### Web Development
 
+* [Lập Trình Web Chuyên Sâu](https://www.youtube.com/playlist?list=PLiyVagO7GfBE1l9XIGemSpy8bnm7QDmsY) - J2Team
 * [Lập Trình Web Cơ Bản](https://www.youtube.com/playlist?list=PLiyVagO7GfBE3_b-4lJEVk7iq1pHQ-xcM) - J2Team