docs: add contents, citation and contact

README.md

@@ -66,6 +66,17 @@ complementary visual and audio-visual tracks.
 We evaluate **50 MLLMs** on temporal grounding, spatial grounding, and question
 answering, assessing both task performance and cross-reference consistency.
 
+## 📝 Content
+
+- [News](#🔥-news)
+- [Overview](#✨-overview)
+- [Dataset Statistics](#📈-dataset-statistics)
+- [Download and Use](#📥-download-and-use)
+- [Experiments Results](#📊-experiments-results)
+- [License](#license)
+- [Citation](#📌-citation)
+- [Contact](#📩-contact)
+
 ## 🔥 News
 
 * **`2026.10.06`** 🤗🤗 We release OmniCompass, a holistic benchmark for omni-modal video grounding and understanding.
@@ -214,3 +225,11 @@ task-specific reference image.
 
 OmniCompass's original annotations are licensed under [CC BY-NC-SA 4.0](https://creativecommons.org/licenses/by-nc-sa/4.0/).
 Third-party videos, audio, and images retain their original copyrights and applicable licenses.
+
+## 📌 Citation
+
+Please consider citing our works in your paper, if our findings help your research.
+
+## 📩 Contact
+
+For any question about our paper or code, please email `xu-yang.liu@connect.polyu.hk`.