Update README.md

README.md

@@ -15,6 +15,8 @@ task_ids: question-generation
 - **Repository:** [https://github.com/asahi417/lm-question-generation](https://github.com/asahi417/lm-question-generation)
 - **Paper:** [More Information Needed](https://github.com/huggingface/datasets/blob/master/CONTRIBUTING.md#how-to-contribute-to-the-dataset-cards)
 - **Point of Contact:** [Asahi Ushio](http://asahiushio.com/)
+- **Size of downloaded dataset files:** 284.1 MB
+- **Size of the generated dataset:** 269 MB
 
 ### Dataset Summary
 [SQuAD](https://rajpurkar.github.io/SQuAD-explorer/) dataset for question generation (QG) task. The split 
@@ -31,11 +33,6 @@ compatible with the [leader board](https://paperswithcode.com/sota/question-gene
 English (en)
 
 ## Dataset Structure
-### Data Instances
-#### plain_text
-- **Size of downloaded dataset files:** 284.1 MB
-- **Size of the generated dataset:** 269 MB
-
 An example of 'train' looks as follows.
 ```
 {
@@ -49,7 +46,6 @@ An example of 'train' looks as follows.
 }
 ```
 
-### Data Fields
 The data fields are the same among all splits.
 
 - `question`: a `string` feature. 
@@ -64,7 +60,7 @@ Each of `paragraph_answer`, `paragraph_sentence`, and `sentence_answer` feature
 but with different information. The `paragraph_answer` and `sentence_answer` features are for answer-aware question generation and 
 `paragraph_sentence` feature is for sentence-aware question generation.
 
-### Data Splits
+## Data Splits
 
 |   name   |train|validation|test |
 |----------|----:|---------:|----:|