Datasheet: replace stale Kaggle references with Hugging Face

DATASHEET.md

@@ -282,8 +282,8 @@ Generic LLM / agent capability probes:
 
 **Will the dataset be distributed to third parties outside of the entity on behalf of which the dataset was created?**
 
-Yes. The dataset is publicly distributed via Kaggle and licensed
-under CC BY-NC-SA 4.0 (see `LICENSE`).
+Yes. The dataset is publicly distributed via Hugging Face and
+licensed under CC BY-NC-SA 4.0 (see `LICENSE`).
 
 **How will the dataset be distributed?**
 
@@ -306,12 +306,12 @@ CC BY-NC-SA 4.0 for the dataset as a whole.
 
 **Who will be supporting/hosting/maintaining the dataset?**
 
-The authors, with versioned releases on Kaggle.
+The authors, with versioned releases on Hugging Face.
 
 **Is there an erratum?**
 
-Will be tracked in the Kaggle dataset's discussion tab and via
-`CHANGELOG.md` in the companion code repository.
+Will be tracked in the dataset's Community tab on Hugging Face and
+via `CHANGELOG.md` in the companion code repository.
 
 **Will the dataset be updated?**
 
@@ -327,5 +327,5 @@ When reporting numbers we recommend pinning to a release tag.
 
 **If others want to extend/augment/build on/contribute to the dataset, is there a mechanism for them to do so?**
 
-Yes — file issues against the Kaggle dataset (discussion tab) or
-open pull requests against the companion code repository.
+Yes — open a discussion in the dataset's Community tab on Hugging
+Face, or a pull request against the companion code repository.