Fix typo

Before this patch, the . would appear on a new line which looked dumb.

Author: strugee

attend.md

@@ -12,7 +12,7 @@ title: Attend SeaGL 2025
     <p>SeaGL is <b>free to attend</b>, and you <b>do not need to register</b>—just show up!</p>
     <p>You may attend SeaGL without identifying yourself, and you are encouraged to do so to protect your privacy.</p>
     <p>All attendees must abide by the <a href="/code_of_conduct">Code of Conduct</a>, and if participating in-person,
-    <a href="/health_and_safety_policy">the Health and Safety Policy</a></p>.
+    <a href="/health_and_safety_policy">the Health and Safety Policy</a>.</p>
 </div>
 
 <div class="row" style="margin-bottom: 1em;margin-top: 2em;">