go: Add tons of SAIO+Hummingbird details to readme
go: Add tons of SAIO+Hummingbird details to readme

I updated this with the results of my own experiences this evening.
Would be great if someone could follow this and help keep me honest
to make sure I've not missed something.

Change-Id: Id70759f7c41471fa67c8834ed47749216845efae

nadeemsyed/hummingbird,redbo/hummingbird,nadeemsyed/hummingbird,creiht/hummingbird,creiht/hummingbird,corystone/hummingbird,troubling/hummingbird,corystone/hummingbird,redbo/hummingbird,troubling/hummingbird