adding dataset loading script

SciDuet.py

@@ -74,11 +74,11 @@ class SciDuet(datasets.GeneratorBasedBuilder):
                     "paper_id": datasets.Value("string"),
                     "paper_title": datasets.Value("string"),
                     "paper_abstract": datasets.Value("string"),
-                    "paper_content": datasets.Features.Sequence({
+                    "paper_content": datasets.features.Sequence({
                             "paper_content_id": datasets.Value("int32"),
                             "paper_content_text": datasets.Value("string"),
                         }),
-                    "paper_headers": datasets.Features.Sequence({
+                    "paper_headers": datasets.features.Sequence({
                             "paper_header_number": datasets.Value("string"),
                             "paper_header_content": datasets.Value("string"),
                         }),