Updated README

README.md

@@ -81,9 +81,9 @@ We show detailed information for up to 5 configurations of the dataset.
 
 #### squad_v2
 
-- **Size of downloaded dataset files:** 44.34 MB
-- **Size of the generated dataset:** 122.57 MB
-- **Total amount of disk used:** 166.91 MB
+- **Size of downloaded dataset files:** 146.21 MB
+- **Size of the generated dataset:** 122.70 MB
+- **Total amount of disk used:** 268.90 MB
 
 An example of 'validation' looks as follows.
 ```
@@ -119,7 +119,7 @@ The data fields are the same among all splits.
 ### Data Splits
 
 | name       |  train | validation | test  |
-| ---------: | -----: | ---------: | ----: |
+| ---------  | -----: | ---------: | ----: |
 | squad_v2   | 90403  |      11873 | 39916 |