Add "Learning FP" link

functional-programming.md

@@ -76,4 +76,8 @@
 
 - **Functors, Applicatives, and Monads in Plain English**  
   http://www.russbishop.net/monoids-monads-and-functors  
-  An attempt to explain these concepts in reasonable terms.
+  An attempt to explain these concepts in reasonable terms.
+
+- **Learning Functional Programming with Javascript**  
+  https://youtu.be/e-5obm1G_FY  
+  A great talk by Anjana Vakil.  Covers several basic concepts of functional programming, including some very nice examples of map/filter/reducer, a clear fdefinition of side effects, and an explanation of how specialized immutable data libraries work.