Update whats-new.md

Author: DebLanger

exposure-management/whats-new.md

@@ -24,7 +24,7 @@ Learn more about MSEM by reading the blogs, [here](https://techcommunity.microso
 >
 > `https://aka.ms/msem/rss`
 
-## February 2025
+## March 2025
 
 ### New predefined classifications
 
@@ -33,6 +33,15 @@ The following predefined classification rules were added to the critical assets
 | Classification                                       | Description                                                  |
 | :--------------------------------------------------- | :----------------------------------------------------------- |
 | Security Operations Admin User              | This rule applies to security operations admin users that configure, manage, monitor, and respond to threats within the organization. |
+
+For more information, see, [Predefined classifications](predefined-classification-rules-and-levels.md)
+
+### New predefined classifications
+
+The following predefined classification rules were added to the critical assets list:
+
+| Classification                                       | Description                                                  |
+| :--------------------------------------------------- | :----------------------------------------------------------- |
 | Azure Key Vault with high number of operations       | This rule identifies and classifies Azure Key Vaults that experience a high volume of operations, indicating their criticality within the cloud environment. |
 | Security Operations Admin Device        | This rule applies to critical devices used to configure, manage, and monitor the security within an organization are vital for security operations administration and are at high risk of cyber threats. They require top-level security measures to prevent unauthorized access. |