Ethernet on a NUC7i5BNH

Hi,
I have installed Sierra on my NUC, and I want to connect it to ethernet.
The LAN system is an INTEL I219V.
So I lokeked for a .kext for my LAN System an found the INTELMAUSIETHERNET https://github.com/Mieze/IntelMausiEthernet recommanded by this web site.
But I'm a little bit confused because I thought I would find a .kext file, but instead, the .zip file contains no such a file.
So I don't know what to do.
Forgive me, I'm a newby.
Regards