* add sql course

* add react free course

* Revert "add react free course"

This reverts commit 3607c3b935d508d55a3df69405ad28d1c8e8f3d1.

* Update free-courses-vi.md
Co-authored-by: NSeth <seth@elypia.org>
Co-authored-by: NSeth <seth@elypia.org>