Provide user guidance about merged packages

[thompson-tomo]

Is your feature request related to a problem? Please describe.

Implementation of #973

Describe the solution you'd like

Clear communication on nuget about discontinuation & stars are transferred to maintained package

Describe alternatives you've considered

Not communicate it

Additional context

https://learn.microsoft.com/en-us/nuget/nuget-org/deprecate-packages

[TimHess]

Thanks for calling this out @thompson-tomo, we absolutely will make these changes shortly after we ship a GA release.