DOC-4800 Mentioned node-exporter metrics for v2 scraping endpoint and added link

Author: rrelledge

content/integrate/prometheus-with-redis-enterprise/prometheus-metrics-definitions.md

@@ -22,4 +22,6 @@ You can [integrate Redis Enterprise Software with Prometheus and Grafana]({{<rel
 
 The v2 metrics in the following tables are available as of Redis Enterprise Software version 7.8.0. For help transitioning from v1 metrics to v2 PromQL, see [Prometheus v1 metrics and equivalent v2 PromQL]({{<relref "/integrate/prometheus-with-redis-enterprise/prometheus-metrics-v1-to-v2">}}).
 
+The v2 scraping endpoint also exposes metrics for `node-exporter` version 1.8.1. For more information, see [Common metrics of node-exporter](https://docs.byteplus.com/en/docs/vmp/Common-metrics-of-node-exporter).
+
 {{<embed-md "rs-prometheus-metrics-v2.md">}}

content/operate/rs/monitoring/metrics_stream_engine.md

@@ -32,6 +32,8 @@ Filter [Libraries and tools]({{<relref "/integrate">}}) by "observability" for a
 
 For a list of all available v2 metrics, see [Prometheus metrics v2]({{<relref "/operate/rs/references/metrics/prometheus-metrics-v2">}}).
 
+The v2 scraping endpoint also exposes metrics for `node-exporter` version 1.8.1. For more information, see [Common metrics of node-exporter](https://docs.byteplus.com/en/docs/vmp/Common-metrics-of-node-exporter).
+
 ## Transition from Prometheus v1 to Prometheus v2
 
 If you are already using the existing scraping endpoint for integration, follow [this guide]({{<relref "/integrate/prometheus-with-redis-enterprise/prometheus-metrics-v1-to-v2">}}) to transition and try the new engine. It is possible to scrape both existing and new endpoints simultaneously, allowing advanced dashboard preparation and a smooth transition.

content/operate/rs/references/metrics/prometheus-metrics-v2.md

@@ -22,4 +22,6 @@ You can [integrate Redis Enterprise Software with Prometheus and Grafana]({{<rel
 
 The v2 metrics in the following tables are available as of Redis Enterprise Software version 7.8.0. For help transitioning from v1 metrics to v2 PromQL, see [Prometheus v1 metrics and equivalent v2 PromQL]({{<relref "/operate/rs/references/metrics/prometheus-metrics-v1-to-v2">}}).
 
+The v2 scraping endpoint also exposes metrics for `node-exporter` version 1.8.1. For more information, see [Common metrics of node-exporter](https://docs.byteplus.com/en/docs/vmp/Common-metrics-of-node-exporter).
+
 {{<embed-md "rs-prometheus-metrics-v2.md">}}