Document TongUI paper relation in README

README.md

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 A collection of video URLs for GUI-related tasks, organized by platform or application.
 
+This dataset provides the **video URLs** collected for [**TongUI: Internet-Scale Trajectories from Multimodal Web Tutorials for Generalized GUI Agents**](https://arxiv.org/abs/2504.12679) — a framework that turns multimodal web tutorials (including YouTube videos) into large-scale GUI agent trajectories. Each URL is paired with a GUI task description (the `.txt` filename) and grouped by platform/app.
+
+- **Paper:** [arXiv:2504.12679](https://arxiv.org/abs/2504.12679)
+- **Project:** [tongui-agent.github.io](https://tongui-agent.github.io/)
+- **Code:** [TongUI-agent/TongUI-agent](https://github.com/TongUI-agent/TongUI-agent)
+
 **Stats:** 32 platforms · 2,627 task files · 126,506 URLs (~2 MB as `urls.zip`)
 
 ## Structure