setup.mdx (setup - Sandbox)
setup.mdx (setup - Sandbox)

Summary: Restyle of page, including changes to spelling, grammar, links, and structure (where relevant).

Reviewed By: lblasa

Differential Revision: D36372379

fbshipit-source-id: 5bf1e93f7901c9ceec9a06c4d9c46a2b06fb201c

facebook/flipper,facebook/flipper,facebook/flipper,facebook/flipper,facebook/flipper,facebook/flipper,facebook/flipper,facebook/flipper,facebook/flipper,facebook/flipper,facebook/flipper