Add documentation link to Loki dashboard for borgmatic (#843).

NEWS

@@ -1,6 +1,8 @@
 1.8.10.dev0
  * #842: When a command hook exits with a soft failure, ping the log and finish states for any
    configured monitoring hooks.
+ * #843: Add documentation link to Loki dashboard for borgmatic:
+   https://torsion.org/borgmatic/docs/how-to/monitor-your-backups/#loki-hook
  * Fix handling of the NO_COLOR environment variable to ignore an empty value.
  * Add documentation about backing up containerized databases by configuring borgmatic to exec into
    a container to run a dump command:

docs/how-to/monitor-your-backups.md

@@ -401,6 +401,10 @@ loki:
         hostname: __hostname
 ```
 
+Also check out this [Loki dashboard for
+borgmatic](https://grafana.com/grafana/dashboards/20736-borgmatic-logs/) if
+you'd like to see your backup logs and statistics in one place.
+
 
 ## Apprise hook