update instructions for adminEmail configuration

config/config.example.js

@@ -147,11 +147,6 @@ module.exports = {
      */
     //removeDonateButton: false,
 
-    /*  CryptPad will display a point of contact for your instance on its contact page
-     *  (/contact.html) if you provide it below.
-     */
-    adminEmail: 'i.did.not.read.my.config@cryptpad.fr',
-
     /*
      *  By default, CryptPad contacts one of our servers once a day.
      *  This check-in will also send some very basic information about your instance including its

www/checkup/main.js

@@ -511,8 +511,7 @@ define([
             'This instance does not provide a valid ',
             h('code', 'adminEmail'),
             ' which can make it difficult to contact its adminstrator to report vulnerabilities or abusive content.',
-            ' This can be configured in ', CONFIG_PATH(), '. ',
+            " This can be configured on your instance's admin panel. Use the provided 'Flush cache' button for this change to take effect for all users."
-            RESTART_WARNING(),
         ]));
         cb(email);
     });