Update README.md

README.md

@@ -8,6 +8,7 @@ We trained on equal samples of the following three datasets:
 
 which resulted in a dataset of 13167 samples total.
 
+These three datasets were chosen as they represent three distinct fine-tuning tasks (Text simplification, question answering, and text summarization, respectively) which we hypothesize can help to improve the language models suitability for dealing with Japanese data.
 These three datasets make up the model name: STX.
 
 # How to use