Add Reversing A List - Part 2 as an elixir til

README.md

@@ -7,7 +7,7 @@ variety of languages and technologies. These are things that don't really
 warrant a full blog post. These are mostly things I learn by pairing with
 smart people at [Hashrocket](http://hashrocket.com/).
 
-_488 TILs and counting..._
+_489 TILs and counting..._
 
 ---
 
@@ -101,6 +101,7 @@ _488 TILs and counting..._
 - [Quitting IEx](elixir/quitting-iex.md)
 - [Replace Duplicates In A Keyword List](elixir/replace-duplicates-in-a-keyword-list.md)
 - [Reversing A List](elixir/reversing-a-list.md)
+- [Reversing A List - Part 2](elixir/reversing-a-list-part-2.md)
 - [Root Directory Of A Project](elixir/root-directory-of-a-project.md)
 - [Round Floats To Integers](elixir/round-floats-to-integers.md)
 - [Run ExUnit Tests In A Deterministic Order](elixir/run-exunit-tests-in-a-deterministic-order.md)

elixir/reversing-a-list-part-2.md

@@ -0,0 +1,13 @@
+# Reversing A List - Part 2
+
+In [Reversing A List](reversing-a-list.md), I showed how Erlang's
+`:lists.reverse()` function could be used to reverse a list. Since then,
+Elixir now has a built-in function for reversing lists. In fact, it works
+with anything that implements the `Enumerable` protocol.
+
+```elixir
+> Enum.reverse([1,2,3,4,5])
+[5, 4, 3, 2, 1]
+> Enum.reverse(%{a: 1, b: 2, c: 3})
+[c: 3, b: 2, a: 1]
+```