changed exhibitions positioning - removed from about section

{{ "<!-- About Section -->" | safeHTML }}

<section id="about">

  <div class="container">

    <div class="row">

      <div class="col-lg-12 text-center">

        <h2 class="section-heading">{{ with .Site.Params.about.title }}{{ . | markdownify }}{{ end }}</h2>

        <h3 class="section-subheading text-muted">{{ with .Site.Params.about.subtitle }}{{ . | markdownify }}{{ end }}</h3>

      </div>

    </div>

  </div>

</section>