addList(items, ordered = false) {
        const tag = ordered ? 'ol' : 'ul';
        const listItems = items.map(item => this.wrap('li', item)).join('');
        const element = this.wrap(tag, listItems);
        return this.addRaw(element).addEOL();
    }
Adds an HTML list to the summary buffer

@param {string[]} items list of items to render
@param {boolean} [ordered=false] (optional) if the rendered list should be ordered or not (default: false)

@returns {Summary} summary instance