Add workshop banner (#359)

_includes/news_banner.html

@@ -8,14 +8,14 @@
 
 {% endraw %}{% endcomment %}
 
-{% if false %}
+{% if true %}
 
 <div class="background-light banner-container">
   <div class="container">
     <div class="row no-margin">
       <div class="col-lg-12 banner">
         <p class="no-margin">
-          Submit your abstract for the preCICE MS at the <a href="https://precice.org/iacm-wccm-2024.html">WCCM 2024</a> in Vancouver till <b><s>January 15</s> February 2</b>. Join also for a full-day training course.
+          Submit your abstract to the <a href="http://precice.org/precice-workshop-2024.html">preCICE workshop 2024</a> on September 24-27, in the University of Stuttgart, Germany.
         </p>
       </div>
     </div>