Update documentation of user creation by replacing the 'confirm' param with 'skip_confirmation'

doc/api/users.md

@@ -258,7 +258,7 @@ Parameters:
 - `location` (optional)          - User's location
 - `admin` (optional)             - User is admin - true or false (default)
 - `can_create_group` (optional)  - User can create groups - true or false
-- `confirm` (optional)          - Require confirmation - true (default) or false
+- `skip_confirmation` (optional) - Skip confirmation - true or false (default)
 - `external` (optional)          - Flags the user as external - true or false(default)
 - `avatar` (optional)            - Image file for user's avatar