Add repository information to package.json.

Author: rwjblue

package.json

@@ -2,6 +2,7 @@
   "name": "@ember/edition-utils",
   "version": "1.0.1",
   "description": "Utilities to detect if a given edition is in use in an ember-cli application.",
+  "repository": "https://github.com/emberjs/ember-octane-utils.git",
   "license": "MIT",
   "author": "Robert Jackson <me@rwjblue.com>",
   "main": "index.js",