Fix conllu2json n_sents and raw text (#4728)
Fix conllu2json n_sents and raw text (#4728)

Update conllu2json converter to include raw text in final batch.
spacy-io/spaCy,spacy-io/spaCy,spacy-io/spaCy,honnibal/spaCy,honnibal/spaCy,explosion/spaCy,explosion/spaCy,explosion/spaCy,explosion/spaCy,honnibal/spaCy,explosion/spaCy,spacy-io/spaCy,honnibal/spaCy,explosion/spaCy,spacy-io/spaCy,spacy-io/spaCy