<h3>接下来你还想学习什么知识？</h3>
<div class="row">
    <div class="col-md-4">
        <div class="well select-next">
            {% include "choices/buttons/monitoring.html" %}
        </div>
    </div>
    <div class="col-md-4">
        <div class="well select-next">
            {% include "choices/buttons/docker.html" %}
        </div>
    </div>
    <div class="col-md-4">
        <div class="well select-next">
            {% include "choices/buttons/web-application-security.html" %}
     