layout.html

<nav class="navbar navbar-default">
    <div class="container-fluid">
        <!-- Brand and toggle get grouped for better mobile display -->
        <div class="navbar-header">
            <button type="button" class="navbar-toggle collapsed" data-toggle="collapse" data-target="#bs-example-navbar-collapse-1" aria-expanded="false">
                <span class="sr-only">Toggle navigation</span>
                <span class="icon-bar"></span>
                <span class="icon-bar"></span>
                <span class="icon-bar"></span>
            </button>
            <a class="navbar-brand" href="index.html">Joseph</a>
        </div>

        <!-- Collect the nav links, forms, and other content for toggling -->
        <div class="collapse navbar-collapse navbar-right" id="bs-example-navbar-collapse-1">
            <ul class="nav navbar-nav">
                <li><a href="#Home">Home</a></li>
                <li><a href="#AboutMe">About me</a></li>
                <li><a href="#Achievement">Achievement</a></li>
                 <li><a href="#Skillset">Skillset</a></li>
                <li><a href="#Resume">Resume</a></li>
                <li><a class="btn btn-contactMe" href="#ContactMe">Contact Me</a></li>
            </ul>

        </div><!-- /.navbar-collapse -->
    </div><!-- /.container-fluid -->
</nav>
<script>
$('a').click(function(){
            $('html, body').animate({
                scrollTop: $( $(this).attr('href') ).offset().top
            }, 800);
        });
</script>