Fix horizontally to vertically in FlexDirection=Column doc
Fix horizontally to vertically in FlexDirection=Column doc

Summary: Closes https://github.com/facebook/yoga/pull/663

Differential Revision: D6407915

Pulled By: emilsjolander

fbshipit-source-id: 03e2896b9b98cf476a92e7c87fd8dc3f7cef9047

facebook/yoga,facebook/yoga,facebook/yoga,facebook/css-layout,facebook/yoga,facebook/css-layout,facebook/yoga,facebook/yoga,facebook/css-layout,facebook/css-layout,facebook/yoga,facebook/css-layout,facebook/css-layout,facebook/css-layout,facebook/css-layout,facebook/yoga,facebook/yoga,facebook/yoga,facebook/css-layout