Fix typos for `use MyApp.Cldr.Routes`

[rubas]

It's use MyApp.Cldr.Routes not use MyApp.Cldr.Route or use MyApp.Cldr.Router.

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Thanks for the library and adding liveview 👍 . We are testing it right now ...

[rubas]

I see you changed this recently but with 0.2 and 0.3-dev, I'll get an error using Cldr.Route instead of Routes.

lib/myapp_web/router.ex:2: module Myapp.Cldr.Route is not loaded and could not be found