Add SIGIR datetime

Author: JMMackenzie

sigir-2025.html

@@ -123,7 +123,7 @@ <h1 class="title is-1 publication-title">Efficient In-Memory Inverted Indexes: T
                         </div>
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                         <div class="is-size-5 publication-authors">
-                            <b>Date and Location: TBD</b>
+                            <b>Date and Location: Sunday July 13th, 09.00-12.30</b>
                         </div>
 
                         <!-- 
@@ -250,4 +250,4 @@ <h2 class="title is-3">Abstract</h2>
 
 </body>
 
-</html>
+</html>