IConfigurationBuilder.Add(IConfigurationSource)

[MrLongBz]

IConfigurationBuilder After the update
The code lacks examples and is not friendly enough for newbies

[Edit to add URL] https://learn.microsoft.com/dotnet/api/microsoft.extensions.configuration.iconfigurationbuilder

I couldn't figure out the best area label to add to this issue. If you have write-permissions please help me learn by adding exactly one area label.

[dotnet-policy-service]

Tagging subscribers to this area: @dotnet/area-extensions-configuration