adding-help: commit renamed help to usage

lib/feature/help.rb

@@ -0,0 +1,18 @@
+require_relative './base'
+
+module Feature
+
+  class Help < Feature::Base
+    def valid?
+      true
+    end
+
+    def usage
+      exit
+    end
+
+    def execute
+    end
+  end
+
+end