doc: fix formatting in NUC GSG
A stray empty code block is removed, along with trailing spaces
@@ -228,9 +228,6 @@ partition. Follow these steps:
.. note::
It is also possible to use the device name directly, e.g. ``root=/dev/sda3``
- .. code-block:: none
-
-
#. Add a timeout period for Systemd-Boot to wait, otherwise it will not
present the boot menu and will always boot the base Clear Linux
