Training day reg date (#398)

* push back summit training rego date

---------

Signed-off-by: Birgit Brecknell <b@brck.nl>

Foundation/Summit/2024/index.html

@@ -190,7 +190,7 @@ <h4 style="padding-top:10px">Registration for training day</h4>
     <a href="https://form.jotform.com/242312058251850">Register for the LionsOS, Rust or both tutorials</a>
   </p>
   <p>
-      Training day @ UNSW is free, but please register by <span class="highlight"> 15 September 2024</span> so that we can account for numbers. Lunch is not included but there are plenty of <a href="https://www.estate.unsw.edu.au/food-retail/explore">coffee and food outlets</a> on campus.
+      Training day @ UNSW is free, but please register by <span class="highlight"><s>15 September 2024</s> 30 September 2024</span> so that we can account for numbers. Lunch is not included but there are plenty of <a href="https://www.estate.unsw.edu.au/food-retail/explore">coffee and food outlets</a> on campus.
     </p>
   <div id="a-lions" style="padding-top:20px">
     <h4>Using LionsOS</h4>