Example link with the info how to set up environment for Android Demo App is broken

Hi.
I did 
$ apt install xorg-dev
$ go get github.com/golang-ui/nuklear/nk
$ go get -tags opengl2 github.com/golang-ui/nuklear/nk

but when came to example link found that it's broken.

Can anyone share the correct link how to set environment for running Android Demo App, please?

Thank you.