Infrastucture docs have moved

[ljones140]

Removes infrastructure documentation as that has been moved to the new private repo https://github.com/clearlydefined/infrastructure

[elrayle]

I did not do a full review. I did have a suggestion for the overview.md file. The suggestion described might apply to other files as well.

[elrayle]

There is a good bit of information used by devs when running on localhost for debugging and development. For example, they may need to set some of the env vars in their local environment. This type of information would be good to remain public.

There is also quite a bit of info that is not needed by devs, but is required to maintain the servers and systems. That info can be moved.

[ljones140]

@elrayle and @qtomlinson I've added the env var configurations back.
I've put them in separate files to make reading easier.
And moved anything deployment focussed to the operations repo

[qtomlinson]

Thank you for separating the configs for the three services. It is much clearer!

[qtomlinson]

If we plan to consider Azure read rights for a future Contributors group (as discussed in our dev sync meeting on November 27), the overview.md document is a great guide. Could we ensure that the description of the "ClearlyDefined Dev Resource Group" remains publicly accessible? See details here.

@jeffmendoza Any thoughts?