Update README.md

Added some description on dataset

README.md

@@ -1,28 +1,50 @@
----
-license: agpl-3.0
-configs:
-- config_name: default
-  data_files:
-  - split: train
-    path: data/train-*
-  - split: val
-    path: data/val-*
-  - split: test
-    path: data/test-*
-dataset_info:
-  features:
-  - name: input
-    dtype: string
-  splits:
-  - name: train
-    num_bytes: 136602851.95652175
-    num_examples: 7260
-  - name: val
-    num_bytes: 17065948.584650856
-    num_examples: 907
-  - name: test
-    num_bytes: 17084764.40447958
-    num_examples: 908
-  download_size: 82888007
-  dataset_size: 170753564.9456522
----
+---
+license: agpl-3.0
+configs:
+- config_name: default
+  data_files:
+  - split: train
+    path: data/train-*
+  - split: val
+    path: data/val-*
+  - split: test
+    path: data/test-*
+dataset_info:
+  features:
+  - name: input
+    dtype: string
+  splits:
+  - name: train
+    num_bytes: 136602851.95652175
+    num_examples: 7260
+  - name: val
+    num_bytes: 17065948.584650856
+    num_examples: 907
+  - name: test
+    num_bytes: 17084764.40447958
+    num_examples: 908
+  download_size: 82888007
+  dataset_size: 170753564.9456522
+task_categories:
+- text-generation
+- question-answering
+- summarization
+language:
+- en
+tags:
+- biology
+- biomedicine
+pretty_name: PubMed Referenced Question Answering Dataset
+size_categories:
+- 1K<n<10K
+---
+# Dataset description
+
+The PQAref dataset is a dataset for fine-tuning large language models for referenced question-answering in biomedical domain. 
+
+The dataset contains 3 components:
+- Instruction - question that is supposed to be answered
+- Abstracts - set of 10 relevant abstracts retrieved by IR system from PubMed, containing PubMed id, abstract title and the content of the abstract
+- Answer - expected answer, with references
+
+The dataset was created semi-automatically, utilizing questions available from PubMedQA dataset.