code: function categories() {
    return getCategories()
      .then((body) => {
        const $ = cheerio.load(body, { normalizeWhitespace: false });
  
        return Promise.resolve($('div.tagcloud01 ul li a').get().map(el => el.children[0].data));
      })
      .catch(err => err);
  }
docs: Retrieves a list/array of categories from exploitalert