Use compliance.conversations.im for server recommendation (#1206)

CHANGES.md

@@ -2,6 +2,7 @@
 
 ## 4.0.1 (Unreleased)
 
+- Use https://compliance.conversations.im instead of (dead) https://xmpp.net
 - New config  setting [auto_register_muc_nickname](https://conversejs.org/docs/html/configuration.html#auto-register-muc-nickname)
 - New config setting [enable_muc_push](https://conversejs.org/docs/html/configuration.html#enable-muc-push)
 - #1182 MUC occupants without nick or JID created

src/converse-register.js

@@ -146,7 +146,7 @@
             _converse.api.settings.update({
                 'allow_registration': true,
                 'domain_placeholder': __(" e.g. conversejs.org"),  // Placeholder text shown in the domain input on the registration form
-                'providers_link': 'https://xmpp.net/directory.php', // Link to XMPP providers shown on registration page
+                'providers_link': 'https://compliance.conversations.im/', // Link to XMPP providers shown on registration page
                 'registration_domain': ''
             });