add note

Author: thomas-tacquet

tutorials/snapshot-instances-jobs/index.mdx

@@ -46,6 +46,10 @@ Serverless Jobs are perfectly adapted for these autonomous tasks, as we do not n
     - `SCW_DEFAULT_ORGANIZATION_ID`: your Organization ID.
     - `SCW_DEFAULT_REGION`: concerned region.
 
+<Message type="note">
+    It's recommended to use Secret Manager to store `SCW_ACCESS_KEY` and `SCW_SECRET_KEY`.
+</Message>
+
 For more details about variables used by `cli`, refer to the [CLI config documentation](https://github.com/scaleway/scaleway-cli/blob/master/docs/commands/config.md).
 
 9. In the **Execution** tab, define the desired command: `/scw block snapshot create volume-id=11111111-1111-1111-1111-111111111111` (replace the ID with your desired volume ID).
@@ -64,6 +68,7 @@ This tutorial is a lightweight example of how to create recurring snapshots of a
 - Using it to manage all your Instances' snapshots
 - Creating backups of your storage disks
 - Setting up an alerting system in case of unexpected behavior
+- Explore [scaleway/serverless-examples repository](https://github.com/scaleway/serverless-examples) for advanced automation examples
 
 ## Additional resources