[TRIVIAL] update comment

[ci skip]
Making makefile output a little prettier
Adding gox dependency
[OOPS] should probably have valid json
Adding all things required for gox

"supported" builds will include darwin/amd64 and linux/amd64
Sending gox builds to the right place
Having gox output to builds dir
Removing the other binaries on `make binclean`
gox should not be a hard dependency of building
[OOPS] Guess that's one shortcut we can't use
Merge pull request #6 from rafecolton/cross-compile-with-gox

Cross compile with gox