[docs] Fix type on renderIntoDocument
[docs] Fix type on renderIntoDocument

Fixes #3581.

(cherry picked from commit d402bd383185b1d9571b5898c764fed528b3b75d)

shripadk/react,shripadk/react,shripadk/react,thr0w/react,thr0w/react,shripadk/react,thr0w/react,shripadk/react,thr0w/react,thr0w/react,thr0w/react,shripadk/react