rpizerovirtualethernetgadget.txt

(Taken from http://blog.gbaman.info/?p=791)
1. Install Bonjour Print Services (https://support.apple.com/kb/DL999)
2. Start from scratch, copy Raspian Jessie to SD card (can use SDFormatter to clean SD card).
3. Open SD Card in File Explorer 
   add to bottom of config.txt:
          dtoverlay=dwc2
   change cmdline.txt to something like the following:
          dwc_otg.lpm_enable=0 console=serial0,115200 console=tty1 root=/dev/mmcblk0p2 rootfstype=ext4 elevator=deadline fsck.repair=yes rootwait modules-load=dwc2,g_ether quiet init=/usr/lib/raspi-config/init_resize.sh
4. eject SD card, put into pi zero and boot.
5. Wait 2 minutes, plug in USB cable, and then try to SSH to raspberrypi.local
6. To get internet:
    6.1  Enable Internet Connection Sharing on the adapter that has internet (Control Panel > Network and sharing center > Adaptor settings > Properties > Sharing) .