Summary:
It's not obvious for non-mobile developers how to fix it when there are no emulators available. Adding a quick section in the troubleshooting guide and linking to it.
Changelog: Add link to troubleshooting page when no emulators are available.
Reviewed By: nikoant
Differential Revision: D36599925
fbshipit-source-id: f3a1e79e07209e34b66176102c85e7797292978c
a73f736d92