Add API Docs to API Reference

[erikerikson]

I followed links to an API library reference. I expected to see API documentation but found none. Please offer documentation of the API.

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Document Details

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• ID: be0289ee-a3fd-820b-2c15-77019efaf323
• Version Independent ID: 1230d950-e015-ef08-51e3-d84dca0e99df
• Content: Azure App Service modules for JavaScript
• Content Source: docs-ref-services/appservice.md
• Service: appservice
• Product: azure
• Technology: azure
• GitHub Login: @SyntaxC4
• Microsoft Alias: cfowler