Update README.md

Author: RangiLyu

README.md

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 ![](docs/imgs/Title.jpg)
 
 # NanoDet
-[![GitHub license](https://img.shields.io/github/license/RangiLyu/nanodet?style=flat-square)](https://github.com/RangiLyu/nanodet/blob/main/LICENSE)
 
 ### Super fast and lightweight anchor-free object detection model. Real-time on mobile devices.
 
+[![GitHub license](https://img.shields.io/github/license/RangiLyu/nanodet?style=flat-square)](https://github.com/RangiLyu/nanodet/blob/main/LICENSE)
+
 * ⚡Super lightweight: Model file is only 1.8 MB.
 * ⚡Super fast: 97fps(10.23ms) on mobile ARM CPU.
 * 😎Training friendly:  Much lower GPU memory cost than other models. Batch-size=80 is available on GTX1060 6G.