why Git is not tracking this case-only rename?

    Windows/macOS filesystems are case-insensitive they treat both names as the same file.So when you rename only by case, the OS reports no change.

Provide the correct steps to make Git recognize and commit the rename:

force Rename command : git mv -f readme.md Readme.md

Explain the underlying reason why this happens (hint: think about how Git interacts with different operating systems and filesystems).

 1. Git was designed for Linux, where filesystems are case-sensitive.
 2. Windows/macOS filesystems are case-insensitive they treat both names as the same file.So when you rename only by case, the OS reports no change.