Update remaining updateeachrelease docs

[gewarren]

Contributes to #34171

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📄 File	🔗 Preview link
docs/core/deploying/creating-nuget-packages.md	How to create a NuGet package with the .NET CLI
docs/core/deploying/deploy-with-cli.md	Publish .NET apps with the .NET CLI
docs/core/install/how-to-detect-installed-versions.md	How to check that .NET is already installed
docs/core/install/linux-ubuntu.md	Get Ubuntu version
docs/core/introduction.md	.NET (and .NET Core) - introduction and overview
docs/core/porting/versioning-sdk-msbuild-vs.md	.NET SDK, MSBuild, and Visual Studio versioning
docs/core/project-sdk/msbuild-props-desktop.md	MSBuild reference for .NET Desktop SDK projects
docs/core/project-sdk/msbuild-props.md	docs/core/project-sdk/msbuild-props
docs/core/sdk.md	What is the .NET SDK?
docs/fundamentals/code-analysis/overview.md	Overview of .NET source code analysis
docs/fundamentals/implementations.md	.NET implementations
docs/standard/net-standard.md	.NET Standard
docs/welcome.md	docs/welcome

[shanselman]

This should be updated also @gewarren, just installing dotnet 8 from Ubuntu. And maybe add metadata so we get it for 9 next time. https://learn.microsoft.com/en-us/dotnet/core/install/linux-ubuntu#register-the-microsoft-package-repository

[BillWagner]

This LGTM.