test_project/src/Components/Footer.js

import React from "react";
import {Link} from "react-router-dom";

const Footer = () => <footer className="page-footer  fixed-bottom">
    <div className="container text-center ">
        <div className="row">
            <div className="col-md-6 mt-md-0 mt-3">
                <h5 className="text-uppercase">Что-то</h5>
                <p>будет</p>
            </div>

            {/* <hr className="clearfix w-100 d-md-none pb-0"/> */}

            <div className="col-md-6 mb-md-0 mb-3">
                <ul className="list-unstyled">
                    <li><Link to="/instruction">Инструкция</Link></li>
                    <li><Link to="/advertisment">Реклама</Link></li>
                </ul>
            </div>
        </div>
    </div>

    <div className="footer-copyright text-center py-3">© 2021 Copyright</div>

</footer>

export default Footer