doc(jobs): add network metrics (#5408)

Author: thomas-tacquet

pages/serverless-jobs/how-to/monitor-job.mdx

@@ -20,21 +20,21 @@ You can monitor the activity of your Serverless Jobs using the [Scaleway console
 
 ## How to monitor your Serverless Jobs from the Scaleway console
 
-Scaleway Cockpit allows you to monitor your applications and their infrastructure by giving you access to metrics, logs, and traces in Grafana dashboards. 
+Scaleway Cockpit allows you to monitor your applications and their infrastructure by giving you access to metrics, logs, and traces in Grafana dashboards.
 
 Make sure that you have created a Grafana user and [retrieved their username and password](/cockpit/how-to/retrieve-grafana-credentials/).
 
 ### Monitor the activity of a job
 
 1. Click **Jobs** in the **Serverless** section of the side menu. The jobs page displays.
 
-2. Click the name of the job you want to monitor. The **Overview** tab displays: 
+2. Click the name of the job you want to monitor. The **Overview** tab displays:
     - The **Job definition** section contains the parameters of your Serverless job, and provides the following elements:
       - Region
       - Provisioned mvCPU and memory
       - Provisioned ephemeral storage
       - Container image used
-      - Cron schedule 
+      - Cron schedule
     - The **Job runs** section lists all the executions of your Serverless job, and provides the following elements:
       - Status (running, succeeded, canceled, or failed)
       - Run ID
@@ -71,3 +71,5 @@ The following metrics are available to monitor your Serverless Jobs:
 - Job runs internal error
 - CPU usage - All
 - Memory usage - All
+- Network received bytes
+- Network transmitted bytes