Fix moved help URL for monitoring performance

app/views/admin/application_settings/_influx.html.haml

@@ -7,7 +7,7 @@
       in running SQL queries. These settings require a
       = link_to 'restart', help_page_path('administration/restart_gitlab')
       to take effect.
-      = link_to icon('question-circle'), help_page_path('administration/monitoring/performance/introduction')
+      = link_to icon('question-circle'), help_page_path('administration/monitoring/performance/index')
     .form-group
       .form-check
         = f.check_box :metrics_enabled, class: 'form-check-input'

changelogs/unreleased/fix-moved-help-doc-administration-monitoring-performance.yml

+---
+title: Fix moved help URL for monitoring performance
+merge_request:
+author:
+type: fixed