Rename prometheus-community to prometheus

Author: SangJunBak

doc/user/content/manage/monitor/_index.md

@@ -14,7 +14,7 @@ menu:
 
 You can monitor the performance and overall health of your Materialize region.
 To help you get started, the following guides are available:
-- [Prometheus Community Helm Chart](/manage/monitor/prometheus-community/)
+- [Grafana using Prometheus](/manage/monitor/prometheus/)
 
 - [Datadog using Prometheus SQL Exporter](/manage/monitor/datadog/)
 

doc/user/content/manage/monitor/prometheus-community.md renamed to doc/user/content/manage/monitor/prometheus.md

@@ -5,6 +5,8 @@ menu:
   main:
     parent: "monitor"
     weight: 1
+aliases:
+  - /manage/monitor/prometheus-community
 ---
 
 This guide walks you through the steps required to monitor the performance and