Update azure-synapse-link-synapse.md

Update prerequisite to highlight:
1.  public network access is required all the time
2. allow storage account key access is required for initial sync

Author: JasonHQX

powerapps-docs/maker/data-platform/azure-synapse-link-synapse.md

@@ -39,7 +39,7 @@ You can use the Azure Synapse Link to connect your Microsoft Dataverse data to A
 
 ## Prerequisites
 
-- Azure Data Lake Storage Gen2: You must have an Azure Data Lake Storage Gen2 account and **Owner** and **Storage Blob Data Contributor** role access. Your storage account must enable **Hierarchical namespace** and it is recommended that replication is set to **read-access geo-redundant storage (RA-GRS)**. 
+- Azure Data Lake Storage Gen2: You must have an Azure Data Lake Storage Gen2 account and **Owner** and **Storage Blob Data Contributor** role access. Your storage account must enable **Hierarchical namespace** and **public network access** for both initial setup and delta sync. **Allow storage account key access** is required only for the initial setup. It is recommended that replication is set to **read-access geo-redundant storage (RA-GRS)**.  
 
 - Synapse workspace: You must have a Synapse workspace and the **Synapse Administrator** role access within the Synapse Studio. The Synapse workspace must be in the same region as your Azure Data Lake Storage Gen2 account with **public network access** enabled. The storage account must be added as a linked service within the Synapse Studio. To create a Synapse workspace, go to [Creating a Synapse workspace](/azure/synapse-analytics/get-started-create-workspace).