length.rb in measured-2.5.0

- old
+ new

@@ -3,6 +3,8 @@
 
   unit :in, value: "0.0254 m", aliases: [:inch, :inches]
   unit :ft, value: "12 in", aliases: [:foot, :feet]
   unit :yd, value: "3 ft", aliases: [:yard, :yards]
   unit :mi, value: "5280 ft", aliases: [:mile, :miles]
+
+  cache Measured::Cache::Json, "length.json"
 end