Update README.md

Author: FengLi-ust

README.md

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 # Visual In-Context Prompting
 In this work, we introduce [DINOv](https://arxiv.org/pdf/2311.13601.pdf), a Visual In-Context Prompting framework for referring and generic segmentation tasks.
-For visualization and demos, we recommend using [T-Rex](https://deepdataspace.com/playground/ivp), which is another visual prompting tool in our team with similar properties as ours.
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+For visualization and demos, we recommend using [T-Rex demo link](https://deepdataspace.com/playground/ivp), which is another visual prompting tool in our team with similar properties as ours.
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 ![teaser](https://github.com/UX-Decoder/DINOv/assets/34880758/f686dd20-a5aa-40fa-ad57-c4c69575853b)
 
 # Openset segmentation