* 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 <>