Fix a few typos

[Blake-Madden]

Repeated words, misspellings, article mismatches, wording errors.

This should be my final pass of everything.

[learn-build-service-prod]

Learn Build status updates of commit dc9e2bb:

✅ Validation status: passed

File	Status	Preview URL	Details
reference/5.1/Microsoft.PowerShell.Core/About/About.md	✅Succeeded	View (powershell-5.1)
reference/5.1/Microsoft.PowerShell.Core/About/about_Classes.md	✅Succeeded	View (powershell-5.1)
reference/5.1/Microsoft.PowerShell.Core/About/about_Function_Provider.md	✅Succeeded	View (powershell-5.1)
reference/5.1/Microsoft.PowerShell.Core/About/about_Methods.md	✅Succeeded	View (powershell-5.1)
reference/5.1/Microsoft.PowerShell.Core/About/about_Remote_Troubleshooting.md	✅Succeeded	View (powershell-5.1)
reference/5.1/Microsoft.PowerShell.Core/About/about_Variable_Provider.md	✅Succeeded	View (powershell-5.1)
reference/5.1/Microsoft.PowerShell.Management/New-Item.md	✅Succeeded	View (powershell-5.1)
reference/5.1/Microsoft.PowerShell.Utility/Add-Type.md	✅Succeeded	View (powershell-5.1)
reference/5.1/Microsoft.PowerShell.Utility/ConvertFrom-StringData.md	✅Succeeded	View (powershell-5.1)
reference/5.1/Microsoft.PowerShell.Utility/Out-GridView.md	✅Succeeded	View (powershell-5.1)
reference/5.1/Microsoft.PowerShell.Utility/Set-Alias.md	✅Succeeded	View (powershell-5.1)
reference/5.1/PSScheduledJob/Register-ScheduledJob.md	✅Succeeded	View (powershell-5.1)
reference/7.2/Microsoft.PowerShell.Core/About/About.md	✅Succeeded	View (powershell-7.2)
reference/7.2/Microsoft.PowerShell.Core/About/about_Break.md	✅Succeeded	View (powershell-7.2)
reference/7.2/Microsoft.PowerShell.Core/About/about_Classes.md	✅Succeeded	View (powershell-7.2)
reference/7.2/Microsoft.PowerShell.Core/About/about_CommonParameters.md	✅Succeeded	View (powershell-7.2)
reference/7.2/Microsoft.PowerShell.Core/About/about_Function_Provider.md	✅Succeeded	View (powershell-7.2)
reference/7.2/Microsoft.PowerShell.Core/About/about_Remote_Troubleshooting.md	✅Succeeded	View (powershell-7.2)
reference/7.2/Microsoft.PowerShell.Management/New-Item.md	✅Succeeded	View (powershell-7.2)
reference/7.2/Microsoft.PowerShell.Utility/Out-GridView.md	✅Succeeded	View (powershell-7.2)
reference/7.2/Microsoft.PowerShell.Utility/Set-Alias.md	✅Succeeded	View (powershell-7.2)
reference/7.3/Microsoft.PowerShell.Core/About/About.md	✅Succeeded	View (powershell-7.3)
reference/7.3/Microsoft.PowerShell.Core/About/about_Break.md	✅Succeeded	View (powershell-7.3)
reference/7.3/Microsoft.PowerShell.Core/About/about_CommonParameters.md	✅Succeeded	View (powershell-7.3)
reference/7.3/Microsoft.PowerShell.Core/About/about_Function_Provider.md	✅Succeeded	View (powershell-7.3)

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[github-actions]

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[sdwheeler]

@Blake-Madden Thanks for the fixes. This really helps with document quality.

Do you have a tool you use to find these problems or are you finding these problems through manual review?