HackberryPi cover mod for waveshare heatsink

This is a mod of hackberryPi cover to fit the waveshare rpi zero heatsinkI print in TPU filamentInfo of hackberryPi: https://github.com/ZitaoTech/Hackberry-Pi_Zero/tree/mainLink to the heatsink: https://www.waveshare.com/product/raspberry-pi/boards-kits/raspberry-pi-zero-2-w-cat/zero-heatsink.htm