Update api-playground/overview.mdx

Author: mintlify[bot]

api-playground/overview.mdx

@@ -144,6 +144,33 @@ Individual `MDX` pages are recommended for small APIs or when you want to experi
 
 For more information, see [x-mint extension](/api-playground/openapi-setup#x-mint-extension) and [MDX Setup](/api-playground/mdx/configuration).
 
+## Media responses
+
+The API playground automatically detects and renders media content types in responses:
+
+- **Images** (`image/*`) - Display inline with full resolution
+- **Audio** (`audio/*`) - Playable audio player with controls
+- **Video** (`video/*`) - Embedded video player with controls
+
+When your API returns a response with a media content type, the playground renders it directly in the response panel. This allows users to immediately preview generated images, audio files, or video content without downloading.
+
+### Example
+
+If your API endpoint returns a video, ensure your OpenAPI specification includes the appropriate content type:
+
+```yaml
+responses:
+  "200":
+    description: Generated video
+    content:
+      video/mp4:
+        schema:
+          type: string
+          format: binary
+```
+
+The playground will automatically render the video with playback controls when the endpoint is called.
+
 ## Further reading
 
 - [AsyncAPI Setup](/api-playground/asyncapi/setup) for more information on creating your AsyncAPI schema to generate WebSocket reference pages.