override func tableView(_ tableView: UITableView, viewForFooterInSection section: Int) -> UIView? {

        var content = "some long text"


        let footerView = UIView(frame: CGRect(x: 0, y: 0, width: view.frame.size.width, height: 40))

        let explanationLabel = UILabel(frame: CGRect(x: 10, y: 0, width: view.frame.size.width - 20, height: 50))
        explanationLabel.font = UIFont.systemFont(ofSize: 14, weight: UIFont.Weight.light)
        explanationLabel.textColor = UIColor.darkGray
        explanationLabel.numberOfLines = 0
        explanationLabel.lineBreakMode = .byTruncatingTail
        explanationLabel.text = content
        footerView.addSubview(explanationLabel)
        return footerView
    }