site/_src/_includes/sections/section-cta-community.html

<section class="section section-cta section-cta--community background--photo text-center">
    <div class="row">
        <header class="section-header">
            <h1 class="section-title">Get involved</h1>
            <p class="section-description">There are many ways you can contribute to the BigchainDB project.</p>
        </header>

        <a class="btn btn-primary" href="/community/">
            Community
        </a>
    </div>
</section>