Output trello json into Markdown format

trello.rb

require 'json'

json = JSON.parse(File.read("trello.json"))

json["lists"].each do |list|
  puts "# #{list['name']}\n"
  json["cards"].each do |card|
    if card["idList"] == list["id"]
      puts "## #{card['name']}\n"
      json["checklists"].each do |chklist|
        if chklist["idCard"] == card["id"]
          puts "### #{chklist['name']}\n" 
          chklist["checkItems"].each do |item|
            puts "* #{item['name']}"
          end
          puts "\n\n"
        end
      end
    end
  end
end