Non working templates and deprecated information

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the analyzer templates reffered in this article seem deprecated. i just installed the workloads created the template and get numerous errors:

Also while the project is .NET Standard and i get it needs some runable framework to run tests etc, during project setup i had to select a .NET Framework version and now i'm getting errors for .NET Core... like WTF dudes?

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#### Document Details

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* ID: 6e3fc905-7aa1-7f5e-9bfe-fbcef461ad5e
* Version Independent ID: a286e20b-1e43-dc57-e0fb-5a9dee7ec3f6
* Content: [Tutorial: Write your first analyzer and code fix](https://docs.microsoft.com/en-us/dotnet/csharp/roslyn-sdk/tutorials/how-to-write-csharp-analyzer-code-fix)
* Content Source: [docs/csharp/roslyn-sdk/tutorials/how-to-write-csharp-analyzer-code-fix.md](https://github.com/dotnet/docs/blob/main/docs/csharp/roslyn-sdk/tutorials/how-to-write-csharp-analyzer-code-fix.md)
* Product: **dotnet-csharp**
* Technology: **csharp-roslyn**
* GitHub Login: @BillWagner
* Microsoft Alias: **wiwagn**

Read docs/csharp/roslyn-sdk/tutorials/how-to-write-csharp-analyzer-code-fix.md and follow the linked tutorial using the reported workload and templates. Identify which examples or setup steps are deprecated, then update the documentation so the tutorial works with current tooling and its framework guidance is consistent.

Written by the indexing model from the issue text.