code: async function getSubtitlesList (filename) {
    return request({
      method: 'GET',
      uri: SUBSCENE_URL + '/subtitles/release',
      qs: {
        q: filename, // search query
        l: '',       // language (english)
        r: true      // released or whatever
      }
    })
  }
docs: Search for the given file on SubScene.
  
  @param {string} filename
  @returns {Promise<string>} the HTML string, containing the search results