Updating icon carousel with latest icons

src/_includes/jumbotron-carousel.html

@@ -25,7 +25,9 @@
           <!-- Carousel items -->
           <div class="carousel-inner">
             <div class="active item"><div><i class="fa fa-font-awesome" aria-hidden="true"></i><span class="sr-only">flag icon</span></div></div>
-            <div class="item"><div><i class="fa fa-universal-access" aria-hidden="true"></i><span class="sr-only">fort awesome icon</span></div></div>
+            <div class="item"><div><i class="fa fa-handshake-o" aria-hidden="true"></i><span class="sr-only">fort awesome icon</span></div></div>
+            <div class="item"><div><i class="fa fa-bath" aria-hidden="true"></i><span class="sr-only">fort awesome icon</span></div></div>
+            <div class="item"><div><i class="fa fa-envelope-open-o" aria-hidden="true"></i><span class="sr-only">fort awesome icon</span></div></div>
             <div class="item"><div><i class="fa fa-fort-awesome" aria-hidden="true"></i><span class="sr-only">fort awesome icon</span></div></div>
             <div class="item"><div><i class="fa fa-commenting" aria-hidden="true"></i><span class="sr-only">commenting icon</span></div></div>
             <div class="item"><div><i class="fa fa-map-signs" aria-hidden="true"></i><span class="sr-only">map signs icon</span></div></div>