Update README.md

Author: Eric Elliott

README.md

@@ -116,6 +116,7 @@ Some of these links are affiliate links, meaning that if you make a purchase, I
 * [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).
 * [EventSource browser Polyfill](https://github.com/Yaffle/EventSource/) Required client-side patching to support Server Sent Events.
+* [RequireFrom](https://github.com/DSKrepps/requireFrom) Cross-platform require relative to your project root.
 * [jQuery](http://jquery.com/) Yes, [I still use jQuery](https://docs.google.com/document/d/1LPaPA30bLUB_publLIMF0RlhdnPx_ePXm7oW02iiT6o/edit#) and so do 61% of the top 100,000 websites - for good reason.
 * [Blaze](http://meteor.github.io/blaze/) DOM-diffing isomorphic reactive templates from Meteor.
 * [RxJS](https://github.com/Reactive-Extensions/RxJS) Reactive extensions for JavaScript. [What's reactive?](https://medium.com/javascript-scene/the-two-pillars-of-javascript-pt-2-functional-programming-a63aa53a41a4)