fix typo (#277)

README.md

@@ -203,7 +203,7 @@ In Dynatrace itself, you need to ensure that the following two features are enab
 
 If [Dynatrace OneAgent](https://www.dynatrace.com/platform/oneagent) is present, for example on SAP BTP CF, it will collect and transport the traces created by `@cap-js/telemetry` automatically.
 (Your app still needs to be bound to a Dynatrace instance, of course. However, `@dynatrace/oneagent-sdk` is not required.)
-Hence, additionally dependency `@opentelemetry/exporter-trace-otlp-proto` and scope `openTelemetryTrace.ingest` are not required.
+Hence, additional dependency `@opentelemetry/exporter-trace-otlp-proto` and scope `openTelemetryTrace.ingest` are not required.
 This is actually the perferred operating model for `telemetry-to-dynatrace` as it provides a better experience than exporting via OpenTelemetry.
 If dependency `@opentelemetry/exporter-trace-otlp-proto` is present anyway, `@cap-js/telemetry` will export the traces via OpenTelemetry as well.