Update release notes for 7.5-preview.3

[sdwheeler]

PR Summary

Update release notes for 7.5-preview.3

• Fixes AB#255484

PR Checklist

• [x] Descriptive Title: This PR's title is a synopsis of the changes it proposes.
• [x] Summary: This PR's summary describes the scope and intent of the change.
• [x] Contributor's Guide: I have read the contributors guide.
• [x] Style: This PR adheres to the style guide.

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

Learn Build status updates of commit daeb1d3:

:white_check_mark: Validation status: passed

File	Status	Preview URL	Details
reference/7.5/Microsoft.PowerShell.Core/About/about_Tab_Expansion.md	:white_check_mark:Succeeded	View (powershell-7.5)
reference/7.5/Microsoft.PowerShell.Utility/ConvertTo-Json.md	:white_check_mark:Succeeded	View (powershell-7.5)
reference/docs-conceptual/whats-new/What-s-New-in-PowerShell-75.md	:white_check_mark:Succeeded	View (>=powershell-5.1)

For more details, please refer to the build report.

For any questions, please:

• Try searching the learn.microsoft.com contributor guides
• Post your question in the Learn support channel

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

Learn Build status updates of commit 11c7c43:

:white_check_mark: Validation status: passed

File	Status	Preview URL	Details
reference/7.5/Microsoft.PowerShell.Core/About/about_Tab_Expansion.md	:white_check_mark:Succeeded	View (powershell-7.5)
reference/7.5/Microsoft.PowerShell.Utility/ConvertTo-Json.md	:white_check_mark:Succeeded	View (powershell-7.5)
reference/docs-conceptual/whats-new/What-s-New-in-PowerShell-75.md	:white_check_mark:Succeeded	View (>=powershell-5.1)

For more details, please refer to the build report.

For any questions, please:

• Try searching the learn.microsoft.com contributor guides
• Post your question in the Learn support channel

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

Learn Build status updates of commit 11c7c43:

:white_check_mark: Validation status: passed

File	Status	Preview URL	Details
reference/7.5/Microsoft.PowerShell.Core/About/about_Tab_Expansion.md	:white_check_mark:Succeeded	View (powershell-7.5)
reference/7.5/Microsoft.PowerShell.Utility/ConvertTo-Json.md	:white_check_mark:Succeeded	View (powershell-7.5)
reference/docs-conceptual/whats-new/What-s-New-in-PowerShell-75.md	:white_check_mark:Succeeded	View (>=powershell-5.1)

For more details, please refer to the build report.

For any questions, please:

• Try searching the learn.microsoft.com contributor guides
• Post your question in the Learn support channel

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

Learn Build status updates of commit 2e257f8:

:white_check_mark: Validation status: passed

File	Status	Preview URL	Details
reference/7.5/Microsoft.PowerShell.Core/About/about_Tab_Expansion.md	:white_check_mark:Succeeded	View (powershell-7.5)
reference/7.5/Microsoft.PowerShell.Utility/ConvertTo-Json.md	:white_check_mark:Succeeded	View (powershell-7.5)
reference/docs-conceptual/whats-new/What-s-New-in-PowerShell-75.md	:white_check_mark:Succeeded	View (>=powershell-5.1)

For more details, please refer to the build report.

For any questions, please:

• Try searching the learn.microsoft.com contributor guides
• Post your question in the Learn support channel

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

Learn Build status updates of commit e277e86:

:white_check_mark: Validation status: passed

File	Status	Preview URL	Details
reference/7.5/Microsoft.PowerShell.Core/About/about_Tab_Expansion.md	:white_check_mark:Succeeded	View (powershell-7.5)
reference/7.5/Microsoft.PowerShell.Utility/ConvertTo-Json.md	:white_check_mark:Succeeded	View (powershell-7.5)
reference/docs-conceptual/whats-new/What-s-New-in-PowerShell-75.md	:white_check_mark:Succeeded	View (>=powershell-5.1)

For more details, please refer to the build report.

For any questions, please:

• Try searching the learn.microsoft.com contributor guides
• Post your question in the Learn support channel