Add 2025 Summit info.

Author: demiankatz

schedule.html

@@ -8,7 +8,11 @@ <h2>Conference Schedule</h2>
       <b>September 2025</b>
       <a href="https://openlibraryfoundation.org/about/wolfcon/upcoming/">WOLFcon 2025</a><br />
       Kansas City, MO / Online - September 23-25, 2025<br/>
-      WOLFcon 2025 will include several VuFind®-related sessions. See the <a href="https://openlibraryfoundation.org/about/wolfcon/upcoming/">WOLFcon website</a> for more details.
+      WOLFcon 2025 will include several VuFind®-related sessions. See the <a href="https://openlibraryfoundation.org/about/wolfcon/upcoming/">WOLFcon website</a> for more details.<br /><br />
+
+      <a href="https://vufind.org/wiki/community:conferences:summit_2025">VuFind® Berlin 2025: What’s in it for us?</a><br />
+      Berlin, Germany / Online - September 29-30, 2025<br />
+      This event will be home to the official 2025 VuFind® Summit and will complement the content presented at WOLFcon. Online and in-person participation are both supported. See the <a href="https://vufind.org/wiki/community:conferences:summit_2025">2025 Summit wiki page</a> and the <a href="https://blog.sbb.berlin/vufind2025/">Call for Papers</a> for details.
     </quote>
     <quote>
       <b>September/October 2024</b>