Another update from ingydotnet^djgoku

Task/Sorting-algorithms-Merge-sort/Elixir/sorting-algorithms-merge-sort.elixir

@@ -0,0 +1,7 @@
+defmodule Sort do
+  def merge_sort(list) when length(list) <= 1, do: list
+  def merge_sort(list) do
+    {left, right} = Enum.split(list, div(length(list), 2))
+    :lists.merge( merge_sort(left), merge_sort(right))
+  end
+end