docs: function() {
    this.colon = false;
    HelpDocument.apply(this, arguments);
    this.format = fmt.MARKDOWN_FORMAT;
    this.vanilla = true;
    this.useCustom = true;
    // disable columns
    this.use = false;
    var format = '* `%s`: %s';
    var overrides = {
      synopsis: '```synopsis\n%s\n```'
    }
    this.markdown = {};
    var conf = this.conf.markdown || {}, i, key;
    var formats = conf.formats || {};
    for(i = 0;i < this.sections.length;i++) {
      key = this.sections[i];
      this.markdown[key] = formats[key] || overrides[key] || format;
    }
  }