Summary: Restyle of the page, including changes to spelling, grammar, lins checks, and structure (where relevant).
Reviewed By: jknoxville
Differential Revision: D35578704
fbshipit-source-id: 65a36631af2369e6483db05f139431d043638c65
Summary: Moved plugin documentation and related assets to plugin folders, fixed links and configured redirects where required. Now these docs are used for both showing docs in Flipper and generating Flipper docs website.
Reviewed By: passy
Differential Revision: D29465567
fbshipit-source-id: 3ec4240b215b0d5baea5154f64266a9ba7ead3a5
