Move landing page new notebook to the bottom

I see. The so the hierarchy index was referred as $scope.index in the isolated scope? If so, it should have already been made available with `scope: { index: "="}` and `<bk-cell ng-repeat="..." index="$index">`  (e.g. in sectioncell.html) and shouldn't need to add `index="$index"` to the <div> in the template. Or am I missing something?