Add Redux resource, check_urls=free-courses-en.md (#5054)

free-courses-en.md

@@ -392,6 +392,7 @@
 #### Redux
 
 * [Getting Started with Redux](https://egghead.io/series/getting-started-with-redux)
+* [Learn Redux](https://learnredux.com) - Wes Bos (email address *requested*)
 
 
 #### Sails.Js