Update New-AdfsAzureMfaTenantCertificate.md

[msbemba]

Made changes reflecting what we did with https://docs.microsoft.com/en-us/powershell/module/adfs/set-adfsazuremfatenant?view=windowsserver2019-ps

[msbemba]

@JohanFreelancer9 Please copy review.

[msbemba]

Issue was reopened #2736

[opbld30]

Docs Build status updates of commit 5193ddd:

✅ Validation status: passed

File	Status	Preview URL	Details
docset/winserver2019-ps/adfs/New-AdfsAzureMfaTenantCertificate.md	✅Succeeded	View (WindowsServer2019-ps)

For more details, please refer to the build report.

Note: Broken links written as relative paths are included in the above build report. For broken links written as absolute paths or external URLs, see the broken link report.

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[scanum]

@tiburd
PR has been copyedited and is ready for final review, could you please check and merge? Thanks!

[learn-build-service-prod]

Learn Build status updates of commit 1e2660c:

✅ Validation status: passed

File	Status	Preview URL	Details
docset/winserver2019-ps/adfs/New-AdfsAzureMfaTenantCertificate.md	✅Succeeded	View (WindowsServer2019-ps)

For more details, please refer to the build report.

For any questions, please:

• Try searching the learn.microsoft.com contributor guides
• Post your question in the Learn support channel