Remove ill-formed space between link text and URL

[Rageking8]

Remove space character between link text and URL, which causes it to be rendered verbatim (instead of an actual link).

[learn-build-service-prod]

Learn Build status updates of commit 63da78e:

✅ Validation status: passed

File	Status	Preview URL	Details
defender-endpoint/find-defender-malware-name.md	✅Succeeded
defender-office-365/defender-for-office-365-whats-new.md	✅Succeeded

For more details, please refer to the build report.

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