Updated Design Sprint

Added Design Sprint 2.0

Design-Sprint.md

@@ -2,6 +2,8 @@
 
 - [5 Takeaways from “Sprint: How to Solve Big Problems and Test New Ideas in Just 5 Days”](https://medium.com/caravan-blog/5-takeaways-from-sprint-how-to-solve-big-problems-and-test-new-ideas-in-just-5-days-c173221226fb)
 
+- [Design Sprint 2.0](https://www.invisionapp.com/inside-design/design-sprint-2/) - "It takes four days instead of five. Why? Because we realized that there are countless little hacks you can do to make the process more efficient. We moved things around, changed up the order to make the flow more logical, and we also shortened a lot of the steps involved. Incredibly, we’ve also added stuff in, only to make the whole thing take less time."
+
 - [Design Sprint DYI Guide](https://www.gv.com/sprint/) - "This page is a DIY guide for running your own sprint. On Monday, you’ll map out the problem and pick an important place to focus. On Tuesday, you’ll sketch competing solutions on paper. On Wednesday, you’ll make difficult decisions and turn your ideas into a testable hypothesis. On Thursday, you’ll hammer out a high-fidelity prototype. And on Friday, you’ll test it with real live humans."
 
 - [Design Sprint How-To Videos](https://www.thesprintbook.com/videos) (Video)