Cross-link new 8.0 sample app

[guardrex]

Description

New sample app is available now in the dotnet/blazor-samples repo for the 8.0 content of the tutorial.

Page URL

https://learn.microsoft.com/en-us/aspnet/core/blazor/tutorials/signalr-blazor?view=aspnetcore-8.0&tabs=visual-studio

Content source URL

https://github.com/dotnet/AspNetCore.Docs/blob/main/aspnetcore/blazor/tutorials/signalr-blazor.md

Document ID

85af7a99-672c-0438-dcc2-e8edfaf70c54

Article author

guardrex