Tweaks based on feedback

Author: weaverryan

security/user_checkers.rst

@@ -25,6 +25,7 @@ are not met, an exception should be thrown which extends the
     use App\Exception\AccountDeletedException;
     use App\Security\User as AppUser;
     use Symfony\Component\Security\Core\Exception\AccountExpiredException;
+    use Symfony\Component\Security\Core\Exception\CustomUserMessageAuthenticationException;
     use Symfony\Component\Security\Core\User\UserCheckerInterface;
     use Symfony\Component\Security\Core\User\UserInterface;
 
@@ -39,6 +40,11 @@ are not met, an exception should be thrown which extends the
             // user is deleted, show a generic Account Not Found message.
             if ($user->isDeleted()) {
                 throw new AccountDeletedException('...');
+
+                // or to customize the message shown
+                throw new CustomUserMessageAuthenticationException(
+                    'Your account was deleted. Sorry about that!'
+                );
             }
         }
 

security/user_provider.rst

@@ -49,8 +49,8 @@ User providers are configured in ``config/packages/security.yaml`` under the
                 memory:
                     # custom options for that provider
                     users:
-                        user:  { password: userpass, roles: [ 'ROLE_USER' ] }
-                        admin: { password: adminpass, roles: [ 'ROLE_ADMIN' ] }
+                        user:  { password: '%env(USER_PASSWORD)%', roles: [ 'ROLE_USER' ] }
+                        admin: { password: '%env(ADMIN_PASSWORD)%', roles: [ 'ROLE_ADMIN' ] }
 
             a_chain_provider:
                 chain: