delete old docs (#327)

* delete old docs

* new docs

docs/pages/examples.md

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+# 🐣 Examples
+
+## List all the snapshots for all the backends
+
+```bash
+autorestic exec -av -- snapshots
+```
+
+## Unlock a locked repository
+
+This can come in handy if a backup process crashed or if it was accidentally cancelled. Then the repository would still be locked without an actual process using it. Only do this if you know what you are doing and are sure no other process is actually reading/writing to the repository of course.
+
+```bash
+autorestic exec -b my-backend -- unlock
+```
+
+## Use hooks to integrate with [healthchecks](https://healthchecks.io/)
+
+> Thanks to @olofvndrhr for providing it ❤️
+
+```yaml
+extras:
+  healthchecks: &healthchecks
+    hooks:
+      before:
+        - 'curl -m 10 --retry 5 -X POST -H "Content-Type: text/plain" --data "Starting backup for location: ${AUTORESTIC_LOCATION}" https://<healthchecks-url>/ping/<uid>/start'
+      failure:
+        - 'curl -m 10 --retry 5 -X POST -H "Content-Type: text/plain" --data "Backup failed for location: ${AUTORESTIC_LOCATION}" https://<healthchecks-url>/ping/<uid>/fail'
+      success:
+        - 'curl -m 10 --retry 5 -X POST -H "Content-Type: text/plain" --data "Backup successful for location: ${AUTORESTIC_LOCATION}" https://<healthchecks-url>/ping/<uid>'
+
+locations:
+  something:
+    <<: *healthchecks
+    from: /somewhere
+    to:
+      - somewhere-else
+```