better bootstrap documentation

generators/achievement/templates/achievement.rb

@@ -8,12 +8,21 @@ class <%= class_name %> < Achievement
 
   # set_thing_to_check { |user| ... }
 
-  def self.award_achievements_for(user)
-    return unless user
-    levels.each do |level|
-      if user.not.has_achievement?(self, level[:level]) and thing_to_check(user) >= level[:quota]
-        user.award_achievement(self, level[:level])
-      end
-    end
-  end
+  # Comment out below for multi-level achievements
+  # def self.award_achievements_for(user)
+  #   return unless user
+  #   levels.each do |level|
+  #     if user.not.has_achievement?(self, level[:level]) and thing_to_check(user) >= level[:quota]
+  #       user.award_achievement(self, level[:level])
+  #     end
+  #   end
+  # end
+
+  # Comment out below for once-off achievements
+  # def self.award_achievements_for(user)
+  #   return unless user
+  #   return if user.has_achievement?(self, level[:level])
+  #   user.award_achievement(self, level[:level])
+  # end
+
 end