Add information on JSX element keys (#6751) (cherry picked from commit 5d64199bb6d5a875206cdcc552cdcb4bf32c7e97)
Add information on JSX element keys (#6751)
(cherry picked from commit 5d64199bb6d5a875206cdcc552cdcb4bf32c7e97)

with-git/react,with-git/react,with-git/react,with-git/react,with-git/react,with-git/react,with-git/react