Setting up on MacOS: getting "sed: can't read : No such file or directory"

[daniel-heppner-ibigroup]

Following the setup instructions for MacOS and I'm getting the following error. Not sure if this is something that is actually a problem or not, though. It seems to have worked because running the command again attempts to clone my secrets repo.

[danielhep]

I think maybe this is related to not having the secrets repository ready. I tried again with the repo created and it worked.

[dustinlyons]

@danielhep Started this PR to capture changes to handle this more gracefully.

PR needs:

• Testing, I haven't got to this yet
• Copied over to the other relevant template apply scripts

#113