update EL training data format in docs (#7839)
update EL training data format in docs (#7839)

* update EL training data format

* fix typo

* all -1 because reasons
explosion/spaCy,honnibal/spaCy,honnibal/spaCy,explosion/spaCy,explosion/spaCy,explosion/spaCy,honnibal/spaCy,honnibal/spaCy,explosion/spaCy,explosion/spaCy