Update data-collection-rule-overview.md

Author: bwren

articles/azure-monitor/essentials/data-collection-rule-overview.md

@@ -14,7 +14,7 @@ There are currently two types of data collection rule in Azure Monitor:
 
 - **Standard DCR**. Used with different workflows that send data to Azure Monitor. Workflows currently supported are [Azure Monitor agent](../agents/azure-monitor-agent-overview.md) and [custom logs (preview)](../logs/custom-logs-overview.md).
 
-- **Workspace transformation DCR)**. Used with a Log Analytics workspace to apply [ingestion-time transformations](../logs/ingestion-time-transformations.md) to workflows that don't currently support DCRs.
+- **Workspace transformation DCR)**. Used with a Log Analytics workspace to apply [ingestion-time transformations (preview)](../logs/ingestion-time-transformations.md) to workflows that don't currently support DCRs.
 
 ## Structure of a data collection rule
 Data collection rules are formatted in JSON. While you may not need to interact with them directly, there are scenarios where you may need to directly edit a data collection rule. See [Data collection rule structure](data-collection-rule-structure.md) for a description of this structure and different elements.