Fix mail reminder session link

Author: andresag4

app/views/session_mailer/reminder.html.erb

@@ -3,7 +3,7 @@
     <h1 class="title"><%= @notification&.email_title %></h1>
     <div class="c-event-card">
       <div class="c-event-card__title">
-        <%= link_to @session.title, sessions_url, style: "color: #CB0C1C; text-decoration: none;" %>
+        <%= link_to @session.title, session_url(@session), style: "color: #CB0C1C; text-decoration: none;" %>
       </div>
 
       <% if @speakers.present? %>