Configuring GTAG_ID upon http request hostname domain

[matiasmasso]

Hi, I'm successfully using your NuGet package but my website is now accepting two country domains and I need to conditionally configure the scoped service with a Google key depending on the domain of the http request. I guess I should first add the scoped service with its parameterless constructor and configure the service with the right key after building the WebApplication on Program.cs. May you publish in the Readme file an example of how to configure it if even possible?