clarify readme

README.md

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 # GitHub Code Dataset
 
 ## Dataset Description
-The GitHub Code dataest consists of 115M code files from GitHub in 32 programming languages with 60 extensions totalling in 1TB of text data. The dataset was created from the public GitHub dataset on Google BiqQuery.
+The GitHub Code dataest consists of 115M code files from GitHub in 32 programming languages with 60 extensions totalling in 1TB of data. The dataset was created from the public GitHub dataset on Google BiqQuery.
 
 ### How to use it
 
@@ -213,7 +213,7 @@ The dataset contains 115M files and the sum of all the source code file sizes is
 ## Dataset Creation
 
 The dataset was created in two steps:
-1. Files of with the extensions given in the list above were retrieved from the GitHub dataset on BigQuery (full query [here](https://huggingface.co/datasets/lvwerra/github-code/blob/main/query.sql)). The query was executed on _Feb 14, 2022, 12:03:16 PM UTC+1_.
+1. Files of with the extensions given in the list above were retrieved from the GitHub dataset on BigQuery (full query [here](https://huggingface.co/datasets/lvwerra/github-code/blob/main/query.sql)). The query was executed on _Mar 16, 2022, 6:23:39 PM UTC+1_.
 2. Files with lines longer than 1000 characters and duplicates (exact duplicates ignoring whitespaces) were dropped (full preprocessing script [here](https://huggingface.co/datasets/lvwerra/github-code/blob/main/github_preprocessing.py)).
 
 ## Considerations for Using the Data