Installation fails

I try to install srandr as documented in the README.md but it fails:

❯ go get gitlab.com/ragon000/srandr
package gitlab.com/ragon000/srandr: no Go files in /home/varac/go/src/gitlab.com/ragon000/srandr

❯ ls /home/varac/go/src/gitlab.com/ragon000/srandr
cmd  demo.webp  Gopkg.lock  Gopkg.toml  internal  LICENSE  makefile  pkg  PKGBUILD  README.md