Update copyright year in Help->About Hyper (#3415)
Update copyright year in Help->About Hyper (#3415)

* Update copyright year

I don't know if this is necessary or not as it's not for the license(from https://github.com/zeit/hyper/pull/2566).
Still mentioning it since I noticed it.

* Remove a typo

zeit/hyper,zeit/hyperterm,zeit/hyper,zeit/hyper,zeit/hyper,zeit/hyperterm