Add task category to metadata

This PR adds `task_categories: [other]` to the YAML metadata block of the dataset card to improve its discoverability on the Hugging Face Hub. The markdown content of the dataset card is already very comprehensive and remains unchanged.

README.md

@@ -1,11 +1,13 @@
 ---
-pretty_name: ClothTransformer Dataset
-license: cc-by-4.0
-viewer: false
 language:
 - en
+license: cc-by-4.0
 size_categories:
 - 1K<n<10K
+pretty_name: ClothTransformer Dataset
+viewer: false
+task_categories:
+- other
 tags:
 - cloth-simulation
 - physics
@@ -139,4 +141,4 @@ third-party assets with their own terms:
   journal = {arXiv preprint arXiv:2605.27852},
   year    = {2026}
 }
-```
+```