Minor typo in Events Doc

[baruchvlz]

Was reading through the docs and found that the link to Using CollectionView's childViewEvents inside the Events Docs isn't working due to the ID name of the h4 tag. See image below.

Current name is using-collectionview-s-childviewevents should be using-collectionviews-childviewevents

[denar90]

Hi. @baruchvlz thanks for the issue and sorry for long reply. I think this is a problem with docco, because it works fine with .md file https://github.com/marionettejs/backbone.marionette/blob/master/docs/events.md
cc @peterblazejewicz