Minor Readme tweaks
Minor Readme tweaks

Summary: Per title

Reviewed By: fabiomassimo

Differential Revision: D29061827

fbshipit-source-id: 11a643b2800bf8d80d39b3b651856cdcebb70b10

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