Add documentation for new convert and model commands
Add documentation for new convert and model commands

aikramer2/spaCy,honnibal/spaCy,Gregory-Howard/spaCy,spacy-io/spaCy,recognai/spaCy,oroszgy/spaCy.hu,spacy-io/spaCy,recognai/spaCy,Gregory-Howard/spaCy,honnibal/spaCy,explosion/spaCy,aikramer2/spaCy,oroszgy/spaCy.hu,oroszgy/spaCy.hu,oroszgy/spaCy.hu,spacy-io/spaCy,honnibal/spaCy,recognai/spaCy,Gregory-Howard/spaCy,explosion/spaCy,aikramer2/spaCy,oroszgy/spaCy.hu,raphael0202/spaCy,honnibal/spaCy,raphael0202/spaCy,explosion/spaCy,Gregory-Howard/spaCy,aikramer2/spaCy,oroszgy/spaCy.hu,aikramer2/spaCy,spacy-io/spaCy,aikramer2/spaCy,recognai/spaCy,raphael0202/spaCy,explosion/spaCy,Gregory-Howard/spaCy,Gregory-Howard/spaCy,explosion/spaCy,spacy-io/spaCy,spacy-io/spaCy,raphael0202/spaCy,recognai/spaCy,raphael0202/spaCy,raphael0202/spaCy,explosion/spaCy,recognai/spaCy