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

@@ -139,8 +139,8 @@ English:
 #### wiki40b_en_100_0
 
 - **Size of downloaded dataset files:** 0.00 MB
-- **Size of the generated dataset:** 12339.25 MB
-- **Total amount of disk used:** 12339.25 MB
+- **Size of the generated dataset:** 12.94 GB
+- **Total amount of disk used:** 12.94 GB
 
 An example of 'train' looks as follows:
 ```
@@ -159,8 +159,8 @@ An example of 'train' looks as follows:
 #### wikipedia_en_100_0
 
 - **Size of downloaded dataset files:** 0.00 MB
-- **Size of the generated dataset:** 25184.52 MB
-- **Total amount of disk used:** 25184.52 MB
+- **Size of the generated dataset:** 26.41 GB
+- **Total amount of disk used:** 26.41 GB
 
 An example of 'train' looks as follows:
 ```