Sponsor page: link sponsor title to website url

[reshamas]

File:
https://github.com/data-umbrella/data-umbrella-website/blob/main/snowlake-v1.2/about/sponsors.html

Need to link sponsor title to sponsor url

            <div class="isotope row">
             {% for lightbox in page.lightbox_area.lightboxes %}
              <div class="item grid-sizer col-md-6">
                <figure class="overlay overlay1 rounded mb-15">
                  <a href="{{lightbox.lightbox_url}}" class="lightbox" data-sub-html=".caption"> 
                    <img src="{{lightbox.thumbnail}}" alt="{{lightbox.title}}"/>
                  </a>
                  <figcaption>
                    <h5 class="from-top mb-0">{{lightbox.hover_title}}</h5>
                  </figcaption>
                </figure>
                <h4>{{lightbox.title}}</h4>
                <div class="caption d-none">
                  <h5>{{lightbox.caption_title}}</h5>
                  <p>{{lightbox.caption_sub_title}}</p>
                </div>
              </div>
              <!--/column -->
              {% endfor %}
            </div>