Splitting dataset to train and test; adding synthetic train data

Updating statistics

Additional samples (poetry) added; fixed_text initialized for majority of samples

Update README.md

Update README.md

Poetry samples added

Update README.md

Update README.md

Update README.md

Update README.md

Update README.md

Fixing typos in readme

Fixing "id" field content

Update README.md

Initial version of dataset

initial commit