Get id of Instagram User in Go

Implement the answer of Instagram API -Get the userId [1] in Go.

UNLICENSE

Released in public domain. See UNLICENSE.

[1]	Instagram API -Get the userId - Stack Overflow

Name		Name	Last commit message	Last commit date
Latest commit History 2 Commits
.travis.yml		.travis.yml
Makefile		Makefile
README.rst		README.rst
UNLICENSE		UNLICENSE
userinfo.go		userinfo.go
userinfo_test.go		userinfo_test.go