Enhance CAP dataset card with metadata, paper, and code links

This PR improves the dataset card for the Celeb Attributes Portfolio (CAP) dataset by:
- Adding `image-feature-extraction` and `feature-extraction` to the `task_categories` in the metadata.
- Including relevant `tags` such as `multimodal`, `celebrity`, `attribute`, and `image-text`.
- Adding `language: en` to the metadata.
- Linking to the associated paper: [Beyond Artificial Misalignment: Detecting and Grounding Semantic-Coordinated Multimodal Manipulations](https://huggingface.co/papers/2509.12653).
- Providing a prominent link to the main project GitHub repository: [https://github.com/shen8424/SAMM-RamDG-CAP](https://github.com/shen8424/SAMM-RamDG-CAP).
- Adding a BibTeX citation for the paper.
- Enhancing the introduction with context about CAP's role in the broader research.

These updates improve discoverability and provide comprehensive information for researchers.

README.md

@@ -1,10 +1,26 @@
 ---
 license: apache-2.0
+task_categories:
+- image-feature-extraction
+- feature-extraction
+language:
+- en
+tags:
+- multimodal
+- celebrity
+- attribute
+- image-text
 ---
 
+This repository contains the **Celeb Attributes Portfolio (CAP)** dataset, which is part of the research presented in the paper [Beyond Artificial Misalignment: Detecting and Grounding Semantic-Coordinated Multimodal Manipulations](https://huggingface.co/papers/2509.12653).
+
+Code: [https://github.com/shen8424/SAMM-RamDG-CAP](https://github.com/shen8424/SAMM-RamDG-CAP)
+
 # Introduction
 
-We present <b>CAP</b>, a large-scale database including over 70k celebrities. Each celebrity in the CAP has at least three associated images along with their gender, birth year, occupation, and main achievements.
+We present **CAP**, a large-scale database including over 70k celebrities. Each celebrity in the CAP has at least three associated images along with their gender, birth year, occupation, and main achievements.
+
+CAP serves as an auxiliary dataset for the Semantic-Aligned Multimodal Manipulation (SAMM) dataset, providing contextual evidence for the Retrieval-Augmented Manipulation Detection and Grounding (RamDG) framework, as described in our paper. It enhances the realism of multimodal manipulation detection by offering semantically consistent visual and textual attributes for grounding manipulations.
 
 Two examples from CAP:
 
@@ -20,4 +36,14 @@ If you want to import the CAP data into your own dataset, please refer to [this]
 
 # 🤗🤗🤗 Citation
 
-If you find this work useful for your research, please kindly cite our paper:
+If you find this work useful for your research, please kindly cite our paper:
+
+```bibtex
+@inproceedings{shen2025beyond,
+  title={Beyond Artificial Misalignment: Detecting and Grounding Semantic-Coordinated Multimodal Manipulations},
+  author={Shen, Jinjie and Wang, Yaxiong and Chen, Lechao and Nan, Pu and Zhong, Zhun},
+  booktitle={Proceedings of the ACM International Conference on Multimedia (MM)},
+  year={2025},
+  url={https://huggingface.co/papers/2509.12653}
+}
+```