Update README.md

Author: Eric Elliott

README.md

@@ -115,6 +115,7 @@ Some of these links are affiliate links, meaning that if you make a purchase, I
 * [HTML5 Boilerplate](https://github.com/h5bp/html5-boilerplate) You'll want to cherry-pick the best of this for your production apps. See [Initializr](http://www.initializr.com).
 * [The Isomorphic Express Boilerplate](https://github.com/ericelliott/isomorphic-express-boilerplate) Write apps using the same code for both the client and the server using Node, Express, and Browserify.
 * [rootrequire](https://github.com/ericelliott/rootrequire) Require files relative to your project path using the normal node require().
+* [dotty](https://github.com/deoxxa/dotty) Get deep properties using dot notation without throwing. e.g., `dotty.get(req, 'user.id');`
 * [native-promise-only](https://github.com/getify/native-promise-only) An ECMAScript standard promise polyfill by Kyle Simpson.
 * [isomorphic-fetch](https://github.com/matthew-andrews/isomorphic-fetch) A [WHATWG fetch](https://fetch.spec.whatwg.org/). standard polyfill.
 * [sseasy](https://github.com/heroku/sseasy) Server Sent Events for Node (HTML5 standard push notifications).