Dictionary show action for letters, alphabetical links helper

app/helpers/dictionary_helper.rb

@@ -1,2 +1,10 @@
 module DictionaryHelper
+  LETTERS = ['i', 'u', 'e', 'o', 'a', 'm', 'n', 'p', 't', 'k', 's', 'w', 'l', 'j'].sort
+
+  def alphabetical_links
+
+    LETTERS.map do |l|
+      link_to l.to_s, dictionary_path(l)
+    end.join("\n")
+  end
 end