Fix dates for the 2023 AGM

Author: NilsIrl

minutes/agm2023-03-12.html

@@ -1,9 +1,9 @@
-<!--#set var="title" value="Minutes of AGM held on 20/03/2021" -->
+<!--#set var="title" value="Minutes of AGM held on 12/03/2023" -->
 <!--#include virtual="../inc/header.html" -->
 <h1><!--#echo encoding="none" var="title" --></h1>
 <div id="doc" class="markdown-body container-fluid">
 	<p>
-    Date: 12/03/2022<br />
+    Date: 12/03/2023<br />
     Time: 16:00<br />
     Venue: Cambridge University Engineering Department, Trumpington Street, Cambridge
   </p>