Add clearer indication of interval patreon requirements

web/templates/reminder_dashboard/guild_reminder.html.tera

@@ -165,6 +165,9 @@
             <div class="collapses split-controls">
                 <div>
                     <div class="patreon-only">
+                        <div class="patreon-invert foreground">
+                            Intervals available on <a href="https://patreon.com/jellywx">Patreon</a> or <a href="https://gitea.jellypro.xyz/jude/reminder-bot">self-hosting</a>
+                        </div>
                         <div class="field">
                             <label class="label">Interval <a class="foreground" href="/help/intervals"><i class="fas fa-question-circle"></i></a></label>
                             <div class="control intervalSelector">