Add keyword lists koan

test/koans/keyword_lists_koans_test.exs

@@ -0,0 +1,19 @@
+defmodule KeywordListsTests do
+  use ExUnit.Case
+  import TestHarness
+
+  test "KeywordLists" do
+    answers = [
+      "bar",
+      "bar",
+      "baz",
+      {:multiple, [:foo, "bar"]},
+      "foo",
+      "GOOD",
+      :good,
+      {:multiple, [:this, :that]},
+    ]
+
+    test_all(KeywordLists, answers)
+  end
+end