Update README.md

README.md

@@ -62,7 +62,11 @@ More information needed
 
 ## Training and evaluation data
 
-More information needed
+The model was trained on data that follows the [`IOB`](<https://en.wikipedia.org/wiki/Inside%E2%80%93outside%E2%80%93beginning_(tagging)>) convention. Full tagset with indices:
+
+```python
+{'O': 0, 'B-PER': 1, 'I-PER': 2, 'B-ORG': 3, 'I-ORG': 4, 'B-LOC': 5, 'I-LOC': 6, 'B-MISC': 7, 'I-MISC': 8}
+```
 
 ## Training procedure