tidy messages and stuff

templates/session_detail.html

@@ -5,7 +5,7 @@
     <div>
         <p class="eyebrow">Session detail</p>
         <h1>{{ session.session_date | pretty_date }}</h1>
-        <p class="muted-text">Current totals are derived from the append-only event log for this date.</p>
+        <p class="muted-text">Current totals are derived from the event log for this date.</p>
     </div>
 </section>