Add ViGoRL work to visual methods papers

README.md

@@ -51,6 +51,7 @@ social network, flow chart, mind map). It's also important for LLM or VLM to bui
 | <br/>[3D Aware Region Prompted Vision Language Model](https://arxiv.org/abs/2509.13317) | <img width="700" alt="image" src="imgs/SR3D.png"> | 2025-09 | [Github](https://www.anjiecheng.me/sr3d) |
 | <br/>[UniUGG: Unified 3D Understanding and Generation via Geometric-Semantic Encoding](https://arxiv.org/abs/2508.11952) | <img width="700" alt="image" src="imgs/UniUGG.png"> | 2025-08 | [Github](https://fudan-zvg.github.io/UniUGG) |
 | <br/>[SIFThinker: Spatially-Aware Image Focus for Visual Reasoning](https://arxiv.org/abs/2508.06259) | <img width="700" alt="image" src="imgs/sifthinker.png"> | 2025-08 | [Github](https://github.com/zhangquanchen/SIFThinker) |
+| [![Publish](https://img.shields.io/badge/Conference-NeurIPS'25-green)]()<br/>[Grounded Reinforcement Learning for Visual Reasoning](https://arxiv.org/abs/2505.23678) | <img width="700" alt="image" src="imgs/vigorl_methods.png"> | 2025-07 | [Github](https://github.com/Gabesarch/grounded-rl) |
 | <br/>[Enhancing Spatial Reasoning through Visual and Textual Thinking](https://arxiv.org/abs/2507.20529) | <img width="700" alt="image" src="imgs/SpatialVTS.png"> | 2025-07 | - |
 | [![Publish](https://img.shields.io/badge/Conference-NeurIPS'25-green)]()<br/>[MindJourney: Test-Time Scaling with World Models for Spatial Reasoning](https://www.arxiv.org/abs/2507.12508) | <img width="700" alt="image" src="imgs/MindJourney.png"> | 2025-07 | [Github](https://umass-embodied-agi.github.io/MindJourney/) |
 | [![Publish](https://img.shields.io/badge/Conference-NeurIPS'25-green)]()<br/>[Struct2D: A Perception-Guided Framework for Spatial Reasoning in Large Multimodal Models](https://arxiv.org/pdf/2506.04220) | <img width="700" alt="image" src="imgs/Struct2D.png"> | 2025-06 | [Github](https://github.com/neu-vi/struct2d) |