helps when you remember to add the files

migrations/005_mark_changed_sites.rb

@@ -0,0 +1,9 @@
+Sequel.migration do
+  up {
+    DB.add_column :sites, :initial_index_changed, :boolean, default: false
+  }
+
+  down {
+    DB.drop_column :sites, :initial_index_changed
+  }
+end

views/browse.slim

@@ -0,0 +1,12 @@
+.row
+  .span12.text-center
+    h1 Home Pages on NeoCities
+    p Want to make your own? <a href="/new">Click here</a>!
+
+  - @sites.each_with_index do |site,i|
+    - if i.even? && i != 0
+      .row
+
+    .span6.text-center
+      = site.username
+      img src="/site_screenshots/#{ENV['RACK_ENV'] == 'development' ? 'victoria' : site.username}.jpg"