def all_h2
      result = []
      @pages.each do |page|
        result << [page.page_url, page.h2_text] unless page.page_a_tags
      end
      result
    end
def all_h2
      result = []
      @pages.each do |page|
        result << [page.page_url, page.h2_text] unless page.page_a_tags
      end
      result
    end
get all h2 tags and return array of it