Update doc/nrf-bm/app_dev/dfu/bootloader_keys.rst

Co-authored-by: Pekka Niskanen <[email protected]>

Author: michalek-no

doc/nrf-bm/app_dev/dfu/bootloader_keys.rst

@@ -75,7 +75,8 @@ The revocation of keys is triggered when both the firmware loader and SoftDevice
 
 .. caution::
    You must enable the ``CONFIG_BOOT_KMU_KEYS_REVOCATION`` Kconfig option when creating your project.
-   If this option is not activated initially, it will not be possible to enable it later, making this functionality unavailable and potentially exposing your project to security issues.
+   If you have not activated this option initially, you cannot enable it later.
+   Without the option, this functionality unavailable and potentially exposes your project to security issues.
 
 A valid signature verification must precede any key invalidation.
 The last remaining key cannot be invalidated.