Merge pull request #264545 from DaleKoetke/docs-editor/cost-usage-1706561902

Update cost-usage.md

Author: prmerger-automator[bot]

articles/azure-monitor/cost-usage.md

@@ -120,7 +120,7 @@ Operation
 | render columnchart 
 ```
 
-(This functionality of reporting the benefits used in the `Operation` table came online in January 2024.) 
+(This functionality of reporting the benefits used in the `Operation` table started January 27, 2024.) 
 
 > [!TIP]
 > If you [increase the data retention](logs/data-retention-archive.md) of the [Operation](/azure/azure-monitor/reference/tables/operation) table, you will be able to view these benefit trends over longer periods.