Update README.md

README.md

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   - split: validation
     path: data/validation-*
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+### Dataset Summary
+
+This is a Finnish SQuAD question answering dataset. It is a DeepL -based machine translation of the English SQuAD2.0 dataset which combines the 100,000 questions in 
+SQuAD1.1 with over 50,000 unanswerable questions written adversarially by crowdworkers to look similar to answerable ones. 
+To do well on SQuAD2.0, systems must not only answer questions when possible, but also determine when no answer is supported 
+by the paragraph and abstain from answering.
+
+### Considerations for Using the Data
+
+Due to DeepL terms and conditions, this dataset **must not be used for any machine translation work**, namely machine translation 
+system development and evaluation of any kind. In general, we wish you do not pair the original English data with the translations 
+except when working on research unrelated to machine translation, so as not to infringe on the terms and conditions.
+
+### Licensing Information
+
+Contents of this repository are distributed under the 
+[Creative Commons Attribution-ShareAlike 4.0 International License (CC BY-SA 4.0)](https://creativecommons.org/licenses/by-sa/4.0/). 
+Copyright of the dataset contents belongs to the original copyright holders.