docs: fix schedule sync commands in hourly RecentlyOnScope runbook

Document admin/sync and the new make sync-schedules target.

docs/hourly-recently-on-scope-runbook.md

@@ -21,7 +21,13 @@ schedule exists:
 ```bash
 cd ~/activity-core
 ACTIVITY_DEFINITION_DIRS=/home/worsch/the-custodian make sync-activity-definitions
-make sync-schedules
+```
+
+Reconcile Temporal schedules (pick one):
+
+```bash
+curl -s -X POST 'http://localhost:8010/admin/sync?definitions=true&schedules=true'
+# or: make sync-schedules
 ```
 
 Expected definition: