Added documentation for status notification schedule (hyperjumptech#436)

* docs: added guide for status notification schedule

* docs: added guide on how to disable status notification

docs/src/manifests/manifest.json

@@ -40,6 +40,11 @@
           "path": "/guides/tls-checkers",
           "editUrl": "/guides/tls-checkers.md"
         },
+        {
+          "title": "Status Notification",
+          "path": "/guides/status-notification",
+          "editUrl": "/guides/status-notification.md"
+        },
         {
           "title": "CLI Options",
           "path": "/guides/cli-options",

docs/src/pages/guides/status-notification.md

@@ -0,0 +1,46 @@
+---
+id: status-notification
+title: Status Notification
+---
+
+Monika sends status notification periodically based on a schedule with following information:
+
+- Host
+- Number of probes
+- Average response time in the last 24 hours
+- Incidents in the last 24 hours
+- Recoveries in the last 24 hours
+- Number of sent notifications in the last 24 hours
+- Application version
+
+By default the schedule is set to 6 AM everyday. You can configure the schedule with cron syntax via command line argument like so:
+
+```bash
+monika --status-notification "0 6 * * *"
+```
+
+or via configuration file like so:
+
+```yml
+notifications:
+  - id: desktop
+    type: desktop
+probes:
+  - requests:
+      - url: http://example.com
+status-notification: 0 6 * * *
+```
+
+You can also choose to disable this feature altogether. Just set the value to `false`
+
+```bash
+monika --status-notification false
+```
+
+or
+
+```yml
+notifications: ...
+probes: ...
+status-notification: false
+```