%li.nav-link= link_to "Overview", overview_smart_path(current_page.path),
  class: "scroll-on-page-link"
%li.nav-link= link_to "The Lessons", "/lessons"
%li.nav-link= link_to "Training", "/training"
%li.nav-link= link_to "Purchase", "/purchase"

%li.nav-link= link_to "Overview", overview_smart_path(current_page.path),
  class: "scroll-on-page-link"
%li.nav-link= link_to "The Lessons", "/lessons"
%li.nav-link= link_to "Training", "/training"
%li.nav-link= link_to "Downloads", "/downloads"
%li.nav-link= link_to "Purchase", "/purchase"

Add Downloads link to nav header.
Add Downloads link to nav header.
