Update documentation of :highlights

[Javi Martín]

To highlight a link, you've got to do somehting like:

= navigation.item "Section", :highlights => [{:controller => :section}]

However, the documentations says the option is named "highlights_on", which I guess it was correct at some time.

Thanks.

[Jeremy Jackson]

Fixed in version 0.2.0. The documentation was correct, the source wasn't -- the source has been updated to use :highlights_on instead of :highlights.