Hi @gordonray661,
Welcome. If you clone from the GitHub repo webpage, make sure you're logged-in first. Then, I like to Fork the repo:
After that, click 'Code' and then the 'Copy' button next to the URL.
Finally, you can go to your local directory and use 'git clone' plus the URL you just copied inside your environment.
If you have any more questions, just reply here and I'll help. If I don't respond it means I didn't see it, so message me through here please.
Best,
Alex S.