Fixed Hoogle engine (#3146)

  - name : hoogle

    engine : xpath

    paging : True

    search_url : https://hoogle.haskell.org/?hoogle={query}&start={pageno}

    results_xpath : '//div[@class="result"]'

    title_xpath : './/div[@class="ans"]//a'

    url_xpath : './/div[@class="ans"]//a/@href'

    content_xpath : './/div[@class="from"]'

    page_size : 20

    title_xpath : './div[@class="ans"]'

    url_xpath : './div[@class="ans"]//a/@href'

    content_xpath : './div[contains(@class, "doc")]'

    categories : it

    shortcut : ho

    about:

      website: https://www.haskell.org/

      website: https://hoogle.haskell.org/

      wikidata_id: Q34010

      official_api_documentation: https://hackage.haskell.org/api

      use_official_api: false

      require_api_key: false

      results: JSON

      results: HTML

  - name : imdb

    engine : imdb