How to add link on dashboard in Alertmanager config?

Hello everybody!
I need send with alert messages grafana dashboard.

I have configured to send alerts to the slack of the form:

Instance check switch 192.168.0.17 down
192.168.0.17 snmp job not running for more than 30 seconds.

How to add a line - link to grafana control panel?

Here is my config:

global:
slack_api_url: Slack API | Slack
opsgenie_api_key: XXXXXXXXXXXXXXXXXXXXXXXXXXX
route:
group_by: [‘alertname’, ‘cluster’, ‘job’, ‘env’, ‘service’]
repeat_interval: 15m
group_interval: 3m

default - send ‘info’ to Slack only

receiver: ‘default’
routes:
# all ‘warning’ to the ‘warning’ receiver with P3
- match:
severity: warning
receiver: warning
# all ‘critical’ to the ‘critical’ receiver with P1
- match:
severity: critical
receiver: critical
receivers:

  • name: ‘default’
    slack_configs:
    • send_resolved: true
      title: “:scream: {{ .CommonAnnotations.summary }}”
      text: “{{ range .Alerts }}{{ .Annotations.description }}\n{{ end }}”

Or maybe what needs to be added to alert.rules?
Thanks