Update WPF tutorial with target framework guidance

[guardrex]

Description

Will be handled by @mattleibow.

Page URL

https://learn.microsoft.com/en-us/aspnet/core/blazor/hybrid/tutorials/wpf?view=aspnetcore-9.0

Content source URL

https://github.com/dotnet/AspNetCore.Docs/blob/main/aspnetcore/blazor/hybrid/tutorials/wpf.md

Document ID

94872f14-0dce-0cf3-0d25-88f23ca8d8ef

Platform Id

2ecb5587-6a67-0985-c3b2-8866436aca57

Article author

@guardrex

Metadata

• ID: 94872f14-0dce-0cf3-0d25-88f23ca8d8ef
• PlatformId: 2ecb5587-6a67-0985-c3b2-8866436aca57
• Service: aspnet-core
• Sub-service: blazor-hybrid

Related Issues

[github-actions]

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