Add text-generation task category

Hi, I'm Niels from the community science team at Hugging Face.

This PR adds the `text-generation` task category to the dataset metadata to make it more discoverable on the Hub. It also preserves the existing links to the research paper and the GitHub repository.

README.md

@@ -1,7 +1,9 @@
 ---
-license: cc-by-sa-3.0
 language:
 - en
+license: cc-by-sa-3.0
+task_categories:
+- text-generation
 ---
 
 ## Dataset Information
@@ -27,6 +29,4 @@ title = {{FrameRef: A Framing Dataset and Simulation Testbed for Modeling Bounde
 url = {https://arxiv.org/abs/2602.15273},
 year = {2025}
 }
-```
-
-
+```