Add task category: text-retrieval

This PR adds the `task_categories: - text-retrieval` metadata field to the dataset card. This update improves the dataset's discoverability on the Hugging Face Hub by properly classifying it under the relevant AI task of text retrieval.

README.md

@@ -1,6 +1,10 @@
 ---
+language:
+- en
 license: cc-by-nc-sa-4.0
-pretty_name: "DAPFAM –\_Domain‑Aware Patent Retrieval at the Family level"
+size_categories:
+- 10K<n<100K
+pretty_name: DAPFAM – Domain‑Aware Patent Retrieval at the Family level
 tags:
 - patents
 - retrieval
@@ -8,20 +12,15 @@ tags:
 - cross‑domain
 - patent
 - fulltext
-size_categories:
-- 10K<n<100K
-language:
-- en
-
+task_categories:
+- text-retrieval
 configs:
 - config_name: corpus
-  data_files: "corpus.parquet"
+  data_files: corpus.parquet
 - config_name: queries
-  data_files: "queries.parquet"
+  data_files: queries.parquet
 - config_name: relations
-  data_files: "qrels_all.parquet"
-
-
+  data_files: qrels_all.parquet
 ---
 
 # **DAPFAM** dataset