icsc 2026 on landing page added

Author: joachimheintz

_layouts/home.html

@@ -29,10 +29,19 @@
               <button type="button" data-bs-target="#myCarousel" data-bs-slide-to="0" class="active" aria-current="true" aria-label="Slide 1"></button>
               <button type="button" data-bs-target="#myCarousel" data-bs-slide-to="1" aria-label="Slide 2"></button>
               <button type="button" data-bs-target="#myCarousel" data-bs-slide-to="2" aria-label="Slide 3"></button>
+              <button type="button" data-bs-target="#myCarousel" data-bs-slide-to="3" aria-label="Slide 4"></button>
             </div>
 
             <div class="carousel-inner">
               <div class="carousel-item active">
+                <a href="https://csound.com/icsc2026/">
+                  <img class="d-block img-fluid" src="images/icsc-2026-caroussel.png" alt="icsc 2026">
+                  <div class="carousel-caption d-none d-md-block">
+                  </div>
+                </a>
+              </div>
+
+              <div class="carousel-item">
                 <a href="/site/news/2025/09/15/CS7-web-ide">
                   <img class="d-block img-fluid" src="images/code-cs7.png" alt="csound 7 code on web ide">
                   <div class="carousel-caption d-none d-md-block">