Updated description in the Gitlab Prometheus metrics section

Author: Etienne Baqué

doc/administration/monitoring/prometheus/gitlab_metrics.md

@@ -7,9 +7,9 @@ installations from source you'll have to configure it yourself.
 To enable the GitLab Prometheus metrics:
 
 1. Log into GitLab as an administrator, and go to the Admin area.
-1. Click on the gear, then click on Settings.
-1. Find the `Metrics - Prometheus` section, and click `Enable Prometheus Metrics`
-1. [Restart GitLab](../../restart_gitlab.md#omnibus-gitlab-restart) for the changes to take effect
+1. Navigate to GitLab's **Settings > Metrics and profiling**.
+1. Find the **Metrics - Prometheus** section, and click **Enable Prometheus Metrics**.
+1. [Restart GitLab](../../restart_gitlab.md#omnibus-gitlab-restart) for the changes to take effect.
 
 ## Collecting the metrics