[docs] Clarify data-reactid in v15 post
[docs] Clarify data-reactid in v15 post

(cherry picked from commit 6fd2b29ec871be80bff9f18ffc19df4f269e0b35)

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