Add REST API Quick Start Guide from Technet Wiki

[opbld31]

Docs Build status updates of commit 627a534:

:warning: Validation status: warnings

File	Status	Preview URL	Details
index.md	:warning:Warning		Details

index.md

• Line 9, Column 10: [Warning: ms-prod-technology-invalid - See documentation] Invalid value for 'ms.prod': 'system-center-2016'.
• Line 21, Column 287: [Suggestion: docs-link-absolute - See documentation] Absolute link 'https://docs.microsoft.com/system-center/scom/manage-overview-html5-webconsole' will be broken in isolated environments. Replace with a relative link.
• Line 21, Column 482: [Suggestion: docs-link-absolute - See documentation] Absolute link 'https://docs.microsoft.com/system-center/scom/manage-create-web-dashboard-custom' will be broken in isolated environments. Replace with a relative link.

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