Add screenshots for in app debugging with preview
Add screenshots for in app debugging with preview

Summary:
Added ss for in app diagnostics using FB app as an example.

Image can be previewed as well if user wants more clarity.

Reviewed By: mweststrate

Differential Revision: D31679937

fbshipit-source-id: 550de8099c8912d2d6caa58c6c9c4c90ba78fabe

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