docs: Fix simple typo, overriden -> overridden (#3676)

* docs: Fix simple typo, overriden -> overridden

There is a small typo in lib/backbone.marionette.esm.js, lib/backbone.marionette.js, src/collection-view.js.

Should read `overridden` rather than `overriden`.

* cleanup

src/collection-view.js

@@ -365,7 +365,7 @@ const CollectionView = Backbone.View.extend({
     return this.setComparator(null, options);
   },
 
-  // If viewComparator is overriden it will be returned here.
+  // If viewComparator is overridden it will be returned here.
   // Additionally override this function to provide custom
   // viewComparator logic
   getComparator() {