I am trying to figure out how to get the resin git image that is listed on my dashboard to my github repository. I have tried the instructions that github suggest with no success. Does anyone have any suggestions on how to do this or do I just need to connect my units to the resin dashboard and let it update the image on the card? Or do I take the card out of the the pi and clone the image of the card and burn that image on my future units that will be doing same thing?
Just flash another sdcard with bare resin image (same as on first rpi). Device will be visible in dashboard and will download the same app services.
Yes, sounds like you figured it out! 
You just need to flash your device with the resinOS image you downloaded from the dashboard. Resin.io will deploy the code you’ve sent with git push resin master to your device automatically.