Add QPS dashboard for Redis Query Engine metrics (#2342)

* Add QPS dashboard for Redis Query Engine metrics

Adding link to the QPS dashboard for Grafana

* Update content/embeds/rs-prometheus-grafana-quickstart.md

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Co-authored-by: Rachel Elledge <[email protected]>

Author: adrianoamaral

content/embeds/rs-prometheus-grafana-quickstart.md

@@ -215,3 +215,4 @@ Use the following dashboards when connecting to the v2 metrics endpoint (`https:
 * The [node metrics dashboard](https://github.com/redis-field-engineering/redis-enterprise-observability/blob/main/grafana_v2/dashboards/grafana_v9-11/software/basic/redis-software-node-dashboard_v9-11.json) provides metrics for each of the nodes hosting your cluster.
 * The [shard metrics dashboard](https://github.com/redis-field-engineering/redis-enterprise-observability/blob/main/grafana_v2/dashboards/grafana_v9-11/software/basic/redis-software-shard-dashboard_v9-11.json) displays metrics for the individual Redis processes running on your cluster nodes.
 * The [Active-Active dashboard](https://github.com/redis-field-engineering/redis-enterprise-observability/blob/main/grafana_v2/dashboards/grafana_v9-11/software/basic/redis-software-active-active-dashboard_v9-11.json) displays metrics specific to [Active-Active databases]({{< relref "/operate/rs/databases/active-active" >}}).
+* The [QPS dashboard - RQE metrics](https://github.com/redis-field-engineering/redis-enterprise-observability/blob/main/grafana_v2/dashboards/grafana_v9-11/search/RediSearchQPS.json) displays metrics specific to Redis Query Engine, showcasing QPS, Query Latency, Indexing performance, and more.