postgres superuser note

Author: vankovap

apps/docs/content/postgresql/how-to/manage.mdx

@@ -122,6 +122,10 @@ CREATE EXTENSION vector;
 CREATE EXTENSION postgis;
 ```
 
+:::info Superuser Credentials
+The PostgreSQL superuser (`postgres`) credentials can be found in the environment variables of your PostgreSQL service. Look for the `superUser` and `superUserPassword` variables in the Zerops GUI under your PostgreSQL service's environment variables section.
+:::
+
 :::warning
 Currently, it is not possible to add new plugins that are not already listed in `pg_available_extensions`.
 :::
@@ -170,4 +174,4 @@ unaccent.rules
 ```
 </DropdownItem>
 </Dropdown>
-For more information on text search dictionaries, refer to the [PostgreSQL documentation](https://www.postgresql.org/docs/16/textsearch-dictionaries.html).
+For more information on text search dictionaries, refer to the [PostgreSQL documentation](https://www.postgresql.org/docs/16/textsearch-dictionaries.html).