docs: nextcloud missing oidc scope (#3926)

docs/content/en/integration/openid-connect/nextcloud/index.md

@@ -62,7 +62,7 @@ $CONFIG = array (
     ),
     'oidc_login_default_group' => 'oidc',
     'oidc_login_use_external_storage' => false,
-    'oidc_login_scope' => 'openid profile groups',
+    'oidc_login_scope' => 'openid profile email groups',
     'oidc_login_proxy_ldap' => false,
     'oidc_login_disable_registration' => true,
     'oidc_login_redir_fallback' => false,
@@ -95,6 +95,7 @@ which will operate with the above example:
   scopes:
     - openid
     - profile
+    - email
     - groups
   userinfo_signing_algorithm: none
 ```