Fixed typo

[muthugit]

Fixed typo in documentation

[learn-build-service-prod[bot]]

Learn Build status updates of commit d098e03:

:warning: Validation status: warnings

File	Status	Preview URL	Details
docs-ref-services/latest/communication-email-readme.md	:warning:Warning	View (azure-python)	Details

docs-ref-services/latest/communication-email-readme.md

• Line 9, Column 13: [Warning: ms-service-subservice-invalid - See documentation] Invalid value for 'ms.service': 'communication'.
• Line 2, Column 1: [Suggestion: description-missing - See documentation] Missing required attribute: 'description'.
• Line 5, Column 12: [Suggestion: ms-author-invalid - See documentation] Invalid value for 'ms.author', 'acsdevx-msft' is not a valid Microsoft alias.

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