Merge pull request #27 from neogeek/greenkeeper/update-notifier-2.1.0

Update update-notifier to the latest version 🚀

Author: neogeek

package.json

@@ -18,7 +18,7 @@
     "doxdox-plugin-markdown": "~1.1.1",
     "globby": "6.1.0",
     "parse-cmd-args": "2.0.0",
-    "update-notifier": "2.0.0"
+    "update-notifier": "2.1.0"
   },
   "devDependencies": {
     "@neogeek/eslint-config-standards": "1.13.0",