Single file or whole project IntelliSense? That part was not clear to me

This isn't the only intelligent GitHub extension, but it's certainly one of the smallest, I've seen.

It simply highlights and displays reference snippets, no complicated functionality, no worries!

Firefox says "this add-on could not be installed because it appears to be corrupt"

I would love this as a package on Atom. Would download that in a skinny minute.

Nitpick but shouldn't it be read code on Github, rather than read code at Github?

VSTS code search has this built in. Find all references is incredibly useful. Assumed GitHub had it already, I guess not... https://docs.microsoft.com/en-us/vsts/search/code/advanced-s...