Add task categories, paper and github link

This PR adds task categories, a link to the paper and a link to the Github repository.

README.md

@@ -24,4 +24,13 @@ configs:
     path: data/validation-*
   - split: test
     path: data/test-*
+task_categories:
+- translation
+tags:
+- legal
+- swiss
 ---
+
+This dataset is the dataset for the paper [SwiLTra-Bench: The Swiss Legal Translation Benchmark](https://arxiv.org/abs/2503.01372).
+
+Github repository: https://github.com/joelniklaus/SwissLegalTranslations