Improve dataset card: Add task category, library name, and code link

This PR enhances the dataset card for OTSurv by:
- Adding `task_categories: image-classification` to the metadata, which aligns with the dataset's use of whole slide images for medical tasks, improving its discoverability.
- Including `library_name: pytorch` in the metadata, as PyTorch is the primary deep learning framework used for this project.
- Adding a direct GitHub repository badge to the top section of the content, making it easier for users to access the associated code.

These changes will make the dataset card more complete and user-friendly on the Hugging Face Hub.

README.md

@@ -2,24 +2,27 @@
 language: en
 license: cc-by-nc-sa-4.0
 tags:
-  - survival-analysis
-  - multiple-instance-learning
-  - optimal-transport
-  - medical-imaging
-  - deep-learning
-  - pytorch
+- survival-analysis
+- multiple-instance-learning
+- optimal-transport
+- medical-imaging
+- deep-learning
+- pytorch
+task_categories:
+- image-classification
+library_name: pytorch
 model-index:
-  - name: OTSurv
-    results:
-      - task:
-          type: survival-analysis
-          name: Survival Prediction
-        dataset:
-          type: TCGA
-          name: TCGA (BLCA, BRCA, LUAD, STAD, COADREAD, KIRC)
-        metrics:
-          - type: c-index
-            value: 0.646
+- name: OTSurv
+  results:
+  - task:
+      type: survival-analysis
+      name: Survival Prediction
+    dataset:
+      type: TCGA
+      name: TCGA (BLCA, BRCA, LUAD, STAD, COADREAD, KIRC)
+    metrics:
+    - type: c-index
+      value: 0.646
 ---
 
 <div align="center">
@@ -49,6 +52,9 @@ model-index:
   <a href="https://arxiv.org/abs/2506.20741">
     <img src="https://img.shields.io/badge/💡%20Paper-MICCAI-blue?style=flat-square" alt="Paper">
   </a>
+  <a href="https://github.com/Y-Research-SBU/OTSurv">
+    <img src="https://img.shields.io/badge/GitHub-Code-blue?style=flat-square&logo=github" alt="GitHub Code">
+  </a>
   <a href="https://huggingface.co/Y-Research-Group/OTSurv">
     <img src="https://img.shields.io/badge/Hugging%20Face-Model-yellow?style=flat-square&logo=huggingface" alt="Hugging Face Model">
   </a>