docs(node): add node documentation for workspace configuration

[Cammisuli]

Current Behavior

No docs for workspace configuration in the node flavour of the docs.

Expected Behavior

Docs for workspace configuration in the node docs.

Related Issue(s)

Fixes #

[nx-cloud]

Nx Cloud Report

CI ran the following commands for commit 73f5ee9. Click to see the status, the terminal output, and the build insights.

Status	Command	Start Time
	nx run-many --target=build --all --parallel	11/5/2020, 1:54:38 PM
	nx run-many --target=e2e --projects=e2e-angular	11/5/2020, 1:55:10 PM
	nx run-many --target=e2e --projects=e2e-cypress,e2e-jest,e2e-nx-plugin	11/5/2020, 1:54:45 PM
	nx run-many --target=e2e --projects=e2e-next	11/5/2020, 1:56:01 PM
	nx run-many --target=e2e --projects=e2e-node	11/5/2020, 1:55:55 PM
	nx run-many --target=e2e --projects=e2e-react	11/5/2020, 1:55:00 PM
	nx run-many --target=e2e --projects=e2e-web,e2e-linter,e2e-storybook	11/5/2020, 1:54:52 PM
	nx run-many --target=e2e --projects=e2e-workspace,e2e-cli	11/5/2020, 1:55:06 PM
	nx run-many --target=lint --all --parallel	11/5/2020, 1:55:40 PM
	nx run-many --target=test --all --parallel	11/5/2020, 1:55:03 PM

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[github-actions]

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