tuxedo_ibs15/post_install.md: fix pre-commit issues

Signed-off-by: Piotr Król <piotr.krol@3mdeb.com>

docs/variants/tuxedo_ibs15/post_install.md

@@ -9,7 +9,6 @@ The touchpad hotkey needs extra setup to function correctly under Linux. To
 enable the touchpad hotkey to work under Linux, follow the steps below:
 
 1. Create a file `/etc/udev/hwdb.d/60-keyboard.hwdb` with the following contents:
-
    ```bash
    evdev:atkbd:dmi:bvn*:bvr*:svnNotebook:pnNS50MU:*
            KEYBOARD_KEY_f7=191
@@ -17,7 +16,6 @@ enable the touchpad hotkey to work under Linux, follow the steps below:
    ```
 
 1. Execute the following commands:
-
    ```bash
    sudo systemd-hwdb update
    sudo udevadm trigger