module Docs  class Html < Mdn    prepend FixInternalUrlsBehavior     # release = '2021-10-22'    self.name = 'HTML'    self.base_url = 'https://developer.mozilla.org/en-US/docs/Web/HTML'     html_filters.push 'html/clean_html', 'html/entries'     options[:root_title] = 'HTML'     options[:skip] = %w(      /index      /Element/shadow      /Element/webkit-meter-optimum-value    )     options[:replace_paths] = {      '/Element/h1' => '/Element/Heading_Elements',      '/Element/h2' => '/Element/Heading_Elements',      '/Element/h3' => '/Element/Heading_Elements',      '/Element/h4' => '/Element/Heading_Elements',      '/Element/h5' => '/Element/Heading_Elements',      '/Element/h6' => '/Element/Heading_Elements',      '/Global_attributes/data-%2A' => '/Global_attributes/data-*' }     options[:fix_urls] = ->(url) do      url.sub! 'https://developer.mozilla.org/en-US/docs/HTML/', "#{Html.base_url}/" unless url.include?('Content_categories')      url    end   endend