Added new style for title
new file:   app/assets/images/Climbing.jpg
new file:   app/assets/images/timefor_40.png
new file:   app/assets/images/timefor_50.png
modified:   app/assets/stylesheets/list.scss
modified:   app/assets/stylesheets/nav.scss
modified:   app/views/activities/index.html.erb
new file:   app/views/categories/index.html.erb
modified:   app/views/layouts/_nav.html.erb
modified:   public/favicon.ico
Updated spec ----
To check