Update overview

content/docs/overview.md

@@ -32,7 +32,7 @@ publishdate: "2023-09-08"
 A dataset format conversion tool for object detection and image segmentation, which supports mutual conversion between **labelme, labelImg tools and YOLO, VOC, and COCO** dataset formats.
 
 
-### Transformation Diagram
+### Supported conversions
 ```mermaid
 flowchart LR
 
@@ -54,7 +54,3 @@ Pull requests are welcome. For major changes, please open an issue first
 to discuss what you would like to change.
 
 Please make sure to update tests as appropriate.
-
-
-### License
-[Apache 2.0](https://choosealicense.com/licenses/apache-2.0/)