design fix (white border for "add **" pics)

Author: MartinSchott

_includes/hubs_grid.html

@@ -41,7 +41,7 @@ <h4>{{ project.caption.title }}</h4>
               <i class="{{ site.data.style.hubs-icon | default: "fas fa-plus fa-3x" }}"></i>
             </div>
           </div>
-          <img class="img-fluid hubs-img" src="assets/img/hubs/00-new-hub.jpg" alt="">
+          <img class="img-fluid border border-light hubs-img" src="assets/img/hubs/00-new-hub.jpg" alt="">
         </a>
         <div class="hubs-caption">
           <h4>Add new Hub</h4>

_includes/tools_grid.html

@@ -41,7 +41,7 @@ <h4>{{ tool.title }}</h4>
               <i class="{{ site.data.style.hubs-icon | default: "fas fa-plus fa-3x" }}"></i>
             </div>
           </div>
-          <img class="img-fluid tools-img" src="assets/img/hubs/00-new-hub.jpg" alt="">
+          <img class="img-fluid border border-light tools-img" src="assets/img/hubs/00-new-hub.jpg" alt="">
         </a>
         <div class="hubs-caption">
           <h4>Add new tool</h4>