Add bin and edit workflow

bin/gems/facets-3.1.0/test/standard/math/test_median.rb

@@ -0,0 +1,17 @@
+covers 'facets/math/median'
+
+test_case Math do
+
+  class_method :median do
+    test "fractional" do
+      r = Math.median [1, 2, 3, 3, 6, 11, 20, 20]
+      r.assert == 4.5
+    end
+
+    test "whole value" do
+      r = Math.median [1, 2, 4, 6, 8]
+      r.assert == 4
+    end
+  end
+
+end