Update the 'introducing' article with detailed rationale information.

[sptramer]

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[ghost]

Docs Build status updates of commit 3d33866:

🕙 Full build: the average full build time is 33 min(s) 50 sec(s), this is based on the last 77 build(s) for this repository.

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[ghost]

Docs Build status updates of commit 3d33866:

✅ Validation status: passed

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docs-conceptual/azps-2.0.0/new-azureps-module-az.md	✅Succeeded	View (azps-2.0.0)

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[ghost]

Docs Build status updates of commit 035ec6a:

🕙 Full build: the average full build time is 33 min(s) 49 sec(s), this is based on the last 78 build(s) for this repository.

⚠️ This is a FULL build due to the incremental build being disabled in configuration file (.openpublishing.publish.config.json in 'live' branch). For more detailed info, please click here.

[ghost]

Docs Build status updates of commit 035ec6a:

✅ Validation status: passed

File	Status	Preview URL	Details
docs-conceptual/azps-2.0.0/new-azureps-module-az.md	✅Succeeded	View (azps-2.0.0)

For more details, please refer to the build report.

Note: If you changed an existing file name or deleted a file, broken links in other files to the deleted or renamed file are listed only in the full build report.