How to get document comments in C# packages?

I think this question may already be answered at somewhere, but I cannot find that unfortunatelly. If you know, please teach me the URL.

I tried to install C# package via dotnet add, OmniSharp.Extensions.LanguageServer and LanguageExt.Core. However, when I refer to the document comments in editor, there are only signatures, and there are comments for same member at GitHub source code.

So, How to get package with document comments?

Environment

• OS: Windows10 21H2
• devcontainer: dotnet:0-6.0-bullseye-slim
• editor: vscode with C# extension
• package installed via: Package Reference in csproj