Summary: send data was documented twice, in the general client API, and in the internal docs where it was specifically combined with obtaining a plugin instance. However, that is a proper public API as well, so combined those two.
Reviewed By: nikoant
Differential Revision: D25588059
fbshipit-source-id: 7135a74b64a87d0c8c3f8f20f7f260469f52d41c
a9ad932955