Fix typos

[rikurauhala]

PR Summary

Fixes two typos.

PR Context

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Repository or docset configuration

• Repo documentation and configuration (.git/.github/.vscode etc.)
• Docs build files (.openpublishing.* and build scripts)
• Docset configuration (docfx.json, mapping, bread, module folder)

Conceptual documentation

• Files in docs-conceptual

Cmdlet reference & about_ topics
When changing cmdlet reference or about_ topics, the changes should be copied to all
relevant versions. Check the boxes below to indicate the versions affected by this change.

• Preview content
• Version 7.2 content
• Version 7.1 content
• Version 7.0 content
• Version 5.1 content

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• All relevant versions updated
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[opbld33]

Docs Build status updates of commit d581a3c:

✅ Validation status: passed

File	Status	Preview URL	Details
reference/docs-conceptual/learn/tutorials/01-discover-powershell.md	✅Succeeded	View (>=powershell-5.1)

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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[sdwheeler]

@rikurauhala Thanks for the fix.