Update Get- and Set- CsPhoneNumberPolicyAssignment to fix formatting errors

[gracenlin]

Add headings for syntax and output sections, in order to pass the platyPS documentation checker.

[learn-build-service-prod]

Learn Build status updates of commit 49b4a29:

✅ Validation status: passed

File	Status	Preview URL	Details
teams/teams-ps/MicrosoftTeams/Get-CsPhoneNumberPolicyAssignment.md	✅Succeeded	View (teams-ps)

For more details, please refer to the build report.

[pavellatif]

approved to merge

[gracenlin]

@gracenlin please read the following Contributor License Agreement(CLA). If you agree with the CLA, please reply with the following information.

@microsoft-github-policy-service agree [company="{your company}"]

Options:

• (default - no company specified) I have sole ownership of intellectual property rights to my Submissions and I am not making Submissions in the course of work for my employer.

@microsoft-github-policy-service agree

• (when company given) I am making Submissions in the course of work for my employer (or my employer has intellectual property rights in my Submissions by contract or applicable law). I have permission from my employer to make Submissions and enter into this Agreement on behalf of my employer. By signing below, the defined term “You” includes me and my employer.

@microsoft-github-policy-service agree company="Microsoft"

Contributor License Agreement

@microsoft-github-policy-service agree company="Microsoft"

[learn-build-service-prod]

Learn Build status updates of commit a34176f:

✅ Validation status: passed

File	Status	Preview URL	Details
teams/teams-ps/MicrosoftTeams/Get-CsPhoneNumberPolicyAssignment.md	✅Succeeded	View (teams-ps)
teams/teams-ps/MicrosoftTeams/Set-CsPhoneNumberPolicyAssignment.md	✅Succeeded	View (teams-ps)

For more details, please refer to the build report.

[pavellatif]

approved to merge