feat(OPS): update

Author: SamyOubouaziz

pages/opensearch/how-to/create-opensearch-deployment.mdx

@@ -31,4 +31,11 @@ This page explains how to create an OpenSearch deployment using the Scaleway con
     - **High Availability**: ensures fault tolerance in case of node failure, workload distribution across all nodes for improved performance, service continuity during rolling updates.
     - **Standalone**: cost-optimized single-node deployment for testing environments and non-critical, small-scale applications, without redundancy.
 
-6. Choose a node type for your deployment. Refer to the [dedicated documentation](/opensearch/reference-content/shared-vs-dedicated-resources/) for more information on shared and dedicated compute resources.
+6. Choose a node type for your deployment. Refer to the [dedicated documentation](/opensearch/reference-content/shared-vs-dedicated-resources/) for more information on shared and dedicated compute resources.
+
+7. Define a storage capacity for each node. The total storage size for your deployment depends on the number of nodes provisioned.
+
+8. Configure network connectivity for your deployment.
+
+9. Create credentials to log in to your OpenSearch deployment. These credentials will grant `admin` access to the user.
+