add note that annotating components is new since 3.1 (#9678)
add note that annotating components is new since 3.1 (#9678)


honnibal/spaCy,explosion/spaCy,honnibal/spaCy,explosion/spaCy,explosion/spaCy,explosion/spaCy,explosion/spaCy,explosion/spaCy,honnibal/spaCy,honnibal/spaCy