Update overview.md

Updating overview images

Author: kbrowne8

articles/ai-services/content-understanding/overview.md

@@ -25,7 +25,7 @@ Azure AI Content Understanding is a new Generative AI based [**Azure AI Service*
 
 Content Understanding offers a streamlined process to reason over large amounts of unstructured data, accelerating time-to-value by generating an output that can be integrated into automation and analytical workflows.
 
-:::image type="content" source="media/overview/overview-flow.png" alt-text="Screenshot of Content Understanding overview, process, and workflow.":::
+:::image type="content" source="media/overview/component-overview.png" alt-text="Screenshot of Content Understanding overview, process, and workflow.":::
 
 ## Why process with Content Understanding?
 
@@ -60,7 +60,7 @@ See [Quickstart](quickstart/use-ai-foundry.md) for more examples.
 
 ## Components
 
-:::image type="content" source="media/overview/component-overview.png" alt-text="Screenshot of Content Understanding components.":::
+:::image type="content" source="media/overview/cu-components.png" alt-text="Screenshot of Content Understanding components.":::
 
 |Component|Description|
 |:---------|:----------|