Visualstudio-docs: Include guide for .NET Core 3.1 web project

[Ogglas]

Could you please write a guide on how to integrate with a .NET Core 3.1 web project? Got it working with a Node.js Console Application but that was not straight forward either. See my reply on SO:

https://stackoverflow.com/a/64064559/3850405

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Document Details

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• ID: 32738a06-835b-5bd5-7a6c-942c681aca97
• Version Independent ID: e715d12c-a4aa-eec3-c05f-1ff6243d209b
• Content: Unit testing JavaScript and TypeScript - Visual Studio
• Content Source: docs/javascript/unit-testing-javascript-with-visual-studio.md
• Product: visual-studio-windows
• Technology: vs-javascript
• GitHub Login: @Mikejo5000
• Microsoft Alias: mikejo

[Mikejo5000]

@Ogglas Thanks for the suggestion. I will add it to the backlog, and try to take a look at this soon.

[Mikejo5000]

Doc update coming. For now, see this:

MicrosoftDocs/visualstudio-docs#6306

[Mikejo5000]

Updated the doc with a new section for ASP.NET Core & JS/TS. Let me know if I missed anything.
Write unit tests for ASP.NET Core