Provide a tiny bit of docs

go/unpaginate/unpaginate.go

@@ -1,4 +1,15 @@
// `unpaginate` unpaginates json resources.
//
// The requested resource is assumed to return an array of JSON
// objects.  `unpaginate` prints a new array containing the JSON
// objects from all pages on stdout.
//
// Pagination is assumed to be in the format that the GitHub v3
// API uses:
//
//  HTTP/1.1 200 OK
//  ...
//  Link: <https://api.github.com/user/527119/repos?per_page=42&page=2>; rel="next", <https://api.github.com/user/527119/repos?per_page=42&page=2>; rel="last"
package main
import (