Added Release notes for April. Fixed some casing

Author: atinb

articles/energy-data-services/release-notes.md

@@ -22,14 +22,19 @@ Azure Data Manager for Energy Preview is updated on an ongoing basis. To stay up
 - Plans for changes
 
 <hr width = 100%>
+## April 2023
+
+### Monitoring and investigating actions with Audit logs
+
+Knowing who is taking what action on which item is critical in helping organizations meet regulatory compliance and record management requirements. Azure Data Manager for Energy captures audit logs for data plane APIs of OSDU services and audit events listed [here](https://community.opengroup.org/osdu/documentation/-/wikis/Releases/R3.0/GCP/GCP-Operation/Logging/Audit-Logging-Status). Learn more about [audit logging in Azure Data Manager for Energy](how-to-manage-audit-logs.md).
 
 ## February 2023
 
 ### Compliant with M14 OSDU&trade; release
 
 Azure Data Manager for Energy Preview is now compliant with the M14 OSDU&trade; milestone release. With this release, you can take advantage of the latest features and capabilities available in the [OSDU&trade; M14](https://community.opengroup.org/osdu/governance/project-management-committee/-/wikis/M14-Release-Notes).
 
-### Product Billing Enabled
+### Product Billing enabled
 
 Billing for Azure Data Manager for Energy Preview is enabled. During Preview, the price for each instance is based on a fixed per-hour consumption. [Pricing information for Azure Data Manager for Energy Preview.](https://azure.microsoft.com/pricing/details/energy-data-services/#pricing)
 
@@ -47,11 +52,11 @@ CORS provides a secure way to allow one origin (the origin domain) to call APIs
 
 ## January 2023
 
-### Managed Identity Support 
+### Managed Identity support 
 
 You can use a managed identity to authenticate to any [service that supports Azure AD (Active Directory) authentication](../active-directory/managed-identities-azure-resources/services-azure-active-directory-support.md) with Azure Data Manager for Energy Preview. For example, you can write a script in Azure Function to ingest data in Azure Data Manager for Energy Preview. Now, you can use managed identity to connect to Azure Data Manager for Energy Preview using system or user assigned managed identity from other Azure services. [Learn more.](../energy-data-services/how-to-use-managed-identity.md)
 
-### Availability zone support
+### Availability Zone support
 
 Availability Zones are physically separate locations within an Azure region made up of one or more datacenters equipped with independent power, cooling, and networking. Availability Zones provide in-region High Availability and protection against local disasters. Azure Data Manager for Energy Preview supports zone-redundant instance by default and there's no setup required by the customer. [Learn more.](https://azure.microsoft.com/explore/global-infrastructure/products-by-region/?products=energy-data-services&regions=all)
 
@@ -72,7 +77,7 @@ Most operations, support, and troubleshooting performed by Microsoft personnel d
 
 Azure Private Link on Azure Data Manager for Energy Preview provides private access to the service. With Azure Private Link, traffic between your private network and Azure Data Manager for Energy Preview travels over the Microsoft backbone network, therefore limiting any exposure over the internet. By using Azure Private Link, you can connect to an Azure Data Manager for Energy Preview instance from your virtual network via a private endpoint. You can limit access to your Azure Data Manager for Energy Preview instance over these private IP addresses. [Create a private endpoint for Azure Data Manager for Energy Preview](how-to-set-up-private-links.md).
 
-### Encryption at Rest using Customer Managed Keys
+### Encryption at rest using Customer Managed keys
 
 Azure Data Manager for Energy Preview supports customer managed encryption keys (CMK). All data in Azure Data Manager for Energy Preview is encrypted with Microsoft-managed keys by default. In addition to Microsoft-managed key, you can use your own encryption key to protect the data in Azure Data Manager for Energy Preview. When you specify a customer-managed key, that key is used to protect and control access to the Microsoft-managed key that encrypts your data. [Data security and encryption in Azure Data Manager for Energy Preview](how-to-manage-data-security-and-encryption.md).