Add charm workshop 2024 announcement

Author: adityapb

layouts/homepage.html

@@ -143,6 +143,12 @@ <h5>adaptive runtime system</h5>
       				<a href="/progmodel/" style="float: right">more...</a>
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 					<div id="announcements">
+						<h3>Charm++ Workshop 2024 Announcement</h3>
+						<p>
+							We will be having the 21st Annual Workshop on Charm++ and its applications at UIUC on Thursday 
+                            April 25th and Friday April 26th 2024. 
+							For more information and for registration, please follow this <a href="https://charmworkshop24.github.io">link</a>.
+						</p>
 						<h3>Hybrid Tutorial 2023 Announcement</h3>
 						<p>
 							We will be having a hybrid tutorial at UIUC on Monday October 23rd and Tuesday October 24th.