docs(kratos): invalidate sessions after recovery

Closes ory/kratos#1077

docs/kratos/guides/account-recovery-password-reset.mdx

@@ -88,3 +88,19 @@ You also need to enable account recovery and have the `link` method enabled:
 That all that's needed! For more information on implementing the UI and details
 about the payloads, head over to the
 [Account Recovery Documentation](../self-service/flows/account-recovery.mdx)!
+
+## Invalidate Other Sessions
+
+To invalidate all other sessions upon successful account recovery, add the
+`revoke_active_sessions` hook to:
+
+```diff
+ selfservice:
+   flows:
+     recovery:
+       enabled: true
+       ui_url: http://127.0.0.1:4455/recovery
++      after:
++        hooks:
++        - hook: revoke_active_sessions
+```