Create ---feature.md (#2831)
Create ---feature.md (#2831)

* Create ---feature.md

* Update ---feature.md

Co-authored-by: mergify[bot] <b09a6ee808b67e98a221404e7aaa52e0398a4954@users.noreply.github.com>
mozilla-mobile/focus-ios,mozilla-mobile/focus-ios,mozilla-mobile/focus-ios,mozilla-mobile/focus-ios,mozilla-mobile/focus-ios,mozilla-mobile/focus-ios