docs: updated README with Scorecard integration (#3434)

Author: Yash1hi

README.md

@@ -104,6 +104,7 @@ Traceloop.init(disable_batch=True)
 - ✅ [New Relic](https://www.traceloop.com/docs/openllmetry/integrations/newrelic)
 - ✅ [OpenTelemetry Collector](https://www.traceloop.com/docs/openllmetry/integrations/otel-collector)
 - ✅ [Oracle Cloud](https://www.traceloop.com/docs/openllmetry/integrations/oraclecloud)
+- ✅ [Scorecard](https://www.traceloop.com/docs/openllmetry/integrations/scorecard)
 - ✅ [Service Now Cloud Observability](https://www.traceloop.com/docs/openllmetry/integrations/service-now)
 - ✅ [SigNoz](https://www.traceloop.com/docs/openllmetry/integrations/signoz)
 - ✅ [Sentry](https://www.traceloop.com/docs/openllmetry/integrations/sentry)