Convert dataset sizes from base 2 to base 10 in the dataset card

Convert dataset sizes from base 2 (MiB) to base 10 (MB) in the dataset card, as it is the case in the dataset viewer.
See: https://github.com/huggingface/datasets/issues/5708

README.md

@@ -63,9 +63,9 @@ dataset_info:
 - **Repository:** [More Information Needed](https://github.com/huggingface/datasets/blob/master/CONTRIBUTING.md#how-to-contribute-to-the-dataset-cards)
 - **Paper:** [More Information Needed](https://github.com/huggingface/datasets/blob/master/CONTRIBUTING.md#how-to-contribute-to-the-dataset-cards)
 - **Point of Contact:** [More Information Needed](https://github.com/huggingface/datasets/blob/master/CONTRIBUTING.md#how-to-contribute-to-the-dataset-cards)
-- **Size of downloaded dataset files:** 1437.45 MB
-- **Size of the generated dataset:** 4213.88 MB
-- **Total amount of disk used:** 5651.33 MB
+- **Size of downloaded dataset files:** 1.51 GB
+- **Size of the generated dataset:** 4.42 GB
+- **Total amount of disk used:** 5.93 GB
 
 ### Dataset Summary
 
@@ -85,9 +85,9 @@ Language modeling resources to be used in conjunction with the LibriSpeech ASR c
 
 #### default
 
-- **Size of downloaded dataset files:** 1437.45 MB
-- **Size of the generated dataset:** 4213.88 MB
-- **Total amount of disk used:** 5651.33 MB
+- **Size of downloaded dataset files:** 1.51 GB
+- **Size of the generated dataset:** 4.42 GB
+- **Total amount of disk used:** 5.93 GB
 
 An example of 'train' looks as follows.
 ```