nuget - How install Nuget Microsoft.ML.OnnxRuntime.Gpu for ONNX Runtime in Ubuntu 18?

Question

I'm trying to use ONNX runtime for Ubuntu: https://onnxruntime.ai/

I selected Linux, C++, x64, then CUDA. It says "Install Nuget package Microsoft.ML.OnnxRuntime.Gpu Refer to docs for requirements."

When I click on "Microsoft.ML.OnnxRuntime.Gpu", I'm taken to https://www.nuget.org/packages/Microsoft.ML.OnnxRuntime.Gpu

There, it just says "Install-Package Microsoft.ML.OnnxRuntime.Gpu -Version 1.8.1". Now what am I supposed to do?