Changelog for 18.2 (#24717)
Changelog for 18.2 (#24717)

* 1820-changelog

* generalize date and fix version typo

* reword, edit, and condense

* punctuation

* Nits

Co-authored-by: dan <ffbbe9cb1097e7ea6a3dedffde5b4fe769829acc@gmail.com>
camsong/react,facebook/react,camsong/react,facebook/react,camsong/react,camsong/react,facebook/react,facebook/react,camsong/react,facebook/react,facebook/react,camsong/react,camsong/react,facebook/react