Add some contents in the login page for confused people

template/pages/login.jet.html

@@ -4,6 +4,9 @@
     In order to enable the landing page and other features, you will have to
     login.
   </p>
+  <p>
+    Note 15/08/2023: By now the only feature you will get is the landing page.
+  </p>
   <p>
     You can only login using your account's cookie, check out
     <a
@@ -12,6 +15,11 @@
     >
     to see how to get it.
   </p>
+  <p>
+    Note that you will get logged out every time the server updates, if you are
+    logged in before but got logged out recently, it is probably because the
+    instance owner restarted the server.
+  </p>
   <form action="/settings/token" method="post">
     <input type="text" name="token" autocomplete="off" />
     <input type="submit" value="Apply" />