Typo in `sndarray` docs calling it `surfarray`

<img width="939" height="132" alt="Image" src="https://github.com/user-attachments/assets/977ea6e0-b08e-4e4e-a030-275dcaa6c3c8" />

Should say `sndarray`, not `surfarray`

This would be an excellent issue for a first-time contributor