Add info abour rerunning auto-detection script

docs/en/serverless/quickstarts/auto-detect-logs-metrics.mdx

@@ -39,6 +39,12 @@ This quickstart has the following requirements and limitations:
 
 There might be a slight delay before logs and other data are ingested.
 
+<DocCallOut title="Need to scan your host again?">
+  You can re-run the script on the same host to detect additional logs.
+  The script will scan the host and reconfigure ((agent)) with any additional logs that are found.
+  If the script misses any custom logs, you can add them manually by entering `n` after the script has finished scanning the host.
+</DocCallOut>
+
 ## Visualize your data
 
 After installation is complete and all relevant data is flowing into Elastic,