Update README.md

README.md

@@ -30,4 +30,5 @@ language:
 
 To be honest, I don't remember where I found the data.  
 They were lying around on my computer in a file called “IA-Factory”, hence the name of the repo.  
-Of the 7,654 data, 6,420 were already in French and 1,234 were in English. I then translated these 1,234 data (these are the last 1,234 rows if you only want to work on data in native French rather than native+translation).
+Of the 7,654 data, 6,420 were already in French and 1,234 were in English. I then translated these 1,234 data (these are the last 1,234 rows if you only want to work on data in native French rather than native+translation).  
+The `dataset` column is for internal use by the person who processed the dataset, and can therefore be ignored by the user.