Doc configuration of LogsApiUrl in README and Options struct for http…

… middleware

README.md

@@ -38,6 +38,8 @@ if err != nil {
 
 You will then have a `func(next http.Handler) http.Handler`, `firetailMiddleware`, which you can use to wrap a `http.Handler` just the same as with the middleware from [`net/http/middleware`](https://pkg.go.dev/go.ntrrg.dev/ntgo/net/http/middleware). This should also be suitable for [Chi](https://go-chi.io/#/pages/middleware).
 
+See the [Go reference for the Options struct](https://pkg.go.dev/github.com/FireTail-io/[email protected]/middlewares/http#Options) for documentation regarding the available options. For example, if you are using `us.firetail.app` you will need to set the `LogsApiUrl` to `https://api.logging.us-east-2.prod.firetail.app/logs/bulk`.
+
 
 
 ## Tests

middlewares/http/options.go

@@ -20,6 +20,8 @@ type Options struct {
 
 	// LogsApiUrl is the URL of the Firetail logging API endpoint to which logs will be sent by the default batch callback. This value
 	// should typically be loaded in from an environment variable. If unset, the default value is the Firetail SaaS' bulk logs endpoint
+	// in the default region (firetail.app). If another region is being used, this option will need to be configured appropriately. For
+	// example, for us.firetail.app LogsApiUrl should normally be https://api.logging.us-east-2.prod.firetail.app/logs/bulk
 	LogsApiUrl string
 
 	// LogBatchCallback is an optional callback which is provided with a batch of Firetail log entries ready to be sent to Firetail. The