Create docs for HTTPS client certs feature

[zivkan]

Create docs for new commands added in https://github.com/NuGet/NuGet.Client/pull/3273

[bgreman]

Here we are nearly two years later and these docs still don't exist. I had a heck of a time figuring out that the "FindBy" prefix needs to be dropped from the FindBy types. I actually read it directly in the code to figure that out.

[silvianoblea]

I hope to test this option and hopefully provide feedback for more formal documentation as this is definitely needed in the government sector.

[JonDouglas]

Some further details:

1. Restore doesn't provide sub-statuses for servers that provide reasoning as to client certification requirements.
2. We should create nuget cli / dotnet cli / conceptual docs for this area based on the specification: https://github.com/NuGet/Home/blob/dev/proposed/archive/NuGet-ClientCertificates.md

[ShahMoneyXL]

I agree with the above! I work with security-sensitive organizations who demand strong cryptographic multifactor authentication, and I've had to spend dozens of hours testing undocumented configurations.

It would help others immensely to have documentation and guidance on how to use these capabilities with client certificates. Especially as the sovereign Azure clouds have no cloud Azure DevOps capability.

[djcornutt]

+2, there are a wide range of opportunities for customer implementations that can open up to us if we can meet security requirements that are stronger than the typical commercial customer. The documentation helps us in the field cut down on problematic implementations and prolonged engagement with support organizations and product groups.

[JonDouglas]

Everyone coming to this issue please 👍 the top most comment so we can prioritize writing the docs here.