Add async/await video

Author: ifdiego

README.md

@@ -718,6 +718,10 @@ This repository was created with the intention of helping developers master thei
  * 📜 [From JavaScript Promises to Async/Await: why bother? — Chris Nwamba](https://blog.pusher.com/promises-async-await/)
  * 📜 [Flow Control in Modern JS: Callbacks to Promises to Async/Await — Craig Buckler](https://www.sitepoint.com/flow-control-callbacks-promises-async-await/)
  * 📜 [JavaScript: Promises and Why Async/Await Wins the Battle — Nick Parsons](https://dzone.com/articles/javascript-promises-and-why-asyncawait-wins-the-ba)
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+ ### Videos
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+ * 🎥 [Async + Await — Wes Bos](https://www.youtube.com/watch?v=9YkUCxvaLEk)
 
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