update README

README.md

@@ -56,7 +56,7 @@ language:
 multilinguality:
 - monolingual
 paperswithcode_id: null
-pretty_name: "JaQuAD: Japanese Question Answering Dataset"
+pretty_name: "UIT-ViQuAD2.0: Vietnamese Question Answering Dataset 2.0"
 task_categories:
 - question-answering
 task_ids:
@@ -64,13 +64,13 @@ task_ids:
 ---
 # Vietnamese Question Answering Dataset
 
-## Dataset Card for JaQuAD
+## Dataset Card for UIT-ViQuAD2.0
 ### Dataset Summary
 The HF version for Vietnamese QA dataset created by [Nguyen et al. (2020)](https://aclanthology.org/2020.coling-main.233/) and released in the [shared task](https://arxiv.org/abs/2203.11400).
 
-The original UIT-ViQuAD contains over 23,000 human-generated question-answer pairs based on 5,109 passages of 174 Vietnamese articles. UIT-ViQuAD2.0 adds over 12K unanswerable questions for the same passage.
+The original UIT-ViQuAD contains over 23,000 QA pairs based on 174 Vietnamese Wikipedia articles. UIT-ViQuAD2.0 adds over 12K unanswerable questions for the same passage.
 
-Processed: The dataset has been processed to remove a few duplicated questions and answers.
+The dataset has been processed to remove a few duplicated questions and answers.
 
 Questions about the private test set or the dataset should be directed to the authors.