feature(#20): this commit introduces support for multiple audiences in federation options configuration

Author: https-richardy

README.md

@@ -53,6 +53,7 @@ services.AddFederation(options =>
     options.Realm = settings.Federation.Realm;               // e.g., "acme-corp"
     options.ClientId = settings.Federation.ClientId;         // e.g., "client-id-generated"
     options.ClientSecret = settings.Federation.ClientSecret; // e.g., "secret-key-generated"
+    options.Audiences = settings.Federation.Audiences        // e.g., "[ "acme-corp-operations", "acme-corp-backoffice" ]"
 });
 ```