New metadata system doc updates (#1590) #1954

Job	Run time
typecheck / typecheck	1m 50s
units / 🧪 Unit Tests	1m 53s
publish-webapp / publish	2m 36s
publish-worker / build (coordinator)	1m 25s
publish-worker / build (docker-provider)	58s
publish-worker / build (kubernetes-provider)	44s
	9m 26s

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