Update annotations.

app/models/watched_word.rb

@@ -60,8 +60,8 @@ end
 #  id         :integer          not null, primary key
 #  word       :string           not null
 #  action     :integer          not null
-#  created_at :datetime
-#  updated_at :datetime
+#  created_at :datetime         not null
+#  updated_at :datetime         not null
 #
 # Indexes
 #