Update README.md

Added a new split called "catalogs" which points at a JSON file that contains the catalogs that were used to annotated the data. The user of the dataset is instructed to use that JSON file instead of https://huggingface.co/datasets/IntelliProcure/sustainability_criteria, because the catalogs on Hugging Face may have changed.

README.md

@@ -8,6 +8,8 @@ configs:
     path: "eval.json"
   - split: test
     path: "test.json"
+  - split: catalogs
+    path: "catalogs_for_annotation.json"
   default: true
 
 license: cc-by-4.0