docs: say exactly where the calendar factories' limits come from (#450, 10.x) - #458

Failed to install dotnet, exit code: 1. dotnet_install: Error: Could not find `.NET Core SDK` with version = 10.0.403 dotnet_install: Error: Refer to: https://aka.ms/dotnet-os-lifecycle for information on .NET Core support

Failed to install dotnet runtime + cli, exit code: 1. dotnet_install: Error: Could not find `.NET Core Runtime` with version = 10.0.14 dotnet_install: Error: Refer to: https://aka.ms/dotnet-os-lifecycle for information on .NET Core support