Showdown

@Html.TextAreaFor(j => j.JobDescription, new { @class = "form-control", @rows = "6", @placeholder = "Enter Job Description" })
        <small class="color-white-mute">Formatting Options: ##heading *italic* **bold** * bulleted list</small>
        <span id="showdown-container">
            <span id="showdown-preview">Preview</span>
        </span>

$("#JobDescription").keyup(function () {
    var txtBox = $(this);
    showdownConvert(txtBox);
});
function showdownConvert(txtBox) {
    var converter = new showdown.Converter({ headerLevelStart: 2 });
    $('#showdown-preview').html(converter.makeHtml(txtBox.val()));

    if (txtBox.val()=="") {
        $('#showdown-preview').html("Preview");

    }
}