new reference architectures

[georgewallace]

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[mergify]

This pull request does not have a backport label. Could you fix it @georgewallace? 🙏
To fixup this pull request, you need to add the backport labels for the needed
branches, such as:

• backport-/d./d is the label to automatically backport to the /d./d branch. /d is the digit
  NOTE: backport-skip has been added to this pull request.

[georgewallace]

@karenzone I have the content where it needs to be now. Mind giving a quick review? Once this is merged I will work on the PR to update the build.

[karenzone]

LGTM on visual inspection 🚀
The real test comes when buildkite runs on your docs PR. So exciting!