Ensure org name in the import path is always NYTimes (nytimes#76)

* Add go.mod

* readme: make sure docs always use NYTimes

* Add a canonical import path

This is in prep for the org rename.

* readme: fix license link

README.md

@@ -52,5 +52,5 @@ The docs can be found at [godoc.org][docs], as usual.
 
 
 
-[docs]:     https://godoc.org/github.com/nytimes/gziphandler
-[license]:  https://github.com/nytimes/gziphandler/blob/master/LICENSE.md
+[docs]:     https://godoc.org/github.com/NYTimes/gziphandler
+[license]:  https://github.com/NYTimes/gziphandler/blob/master/LICENSE

go.mod

@@ -0,0 +1,5 @@
+module github.com/NYTimes/gziphandler
+
+go 1.12
+
+require github.com/stretchr/testify v1.3.0

go.sum

@@ -0,0 +1,7 @@
+github.com/davecgh/go-spew v1.1.0 h1:ZDRjVQ15GmhC3fiQ8ni8+OwkZQO4DARzQgrnXU1Liz8=
+github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
+github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
+github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
+github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
+github.com/stretchr/testify v1.3.0 h1:TivCn/peBQ7UY8ooIcPgZFpTNSz0Q2U6UrFlUfqbe0Q=
+github.com/stretchr/testify v1.3.0/go.mod h1:M5WIy9Dh21IEIfnGCwXGc5bZfKNJtfHm1UVUgZn+9EI=

gzip.go

@@ -1,4 +1,4 @@
-package gziphandler
+package gziphandler // import "github.com/NYTimes/gziphandler"
 
 import (
 	"bufio"