* Add 4 course on free-courses-id.md

* fixing linter failed on courses

* add 4 course on free-courses-id.md

* remove kotlin free course on free-courses-id.md

* remove unused line on kotlin

* add 2 kotlin resources on free-courses-id.md

* fixing number of lines on end of section

Co-authored-by: Muhamad Arif Ar Rijal <>