## 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.