Update docs/source/carrierboard_development.rst

Co-authored-by: barsnick <barsnick@users.noreply.github.com>

Author: mhei

docs/source/carrierboard_development.rst

@@ -108,7 +108,7 @@ Additional notes regarding the content:
   then DT offset and DT length fields are used without further checks.
   Customers are advised to fully comply with this specification since the implemented behaviour can be extended
   to be more strict in the future.
-- The digitial DT overlay signature is currently not checked by U-Boot or any other software component but this
+- The digital DT overlay signature is currently not checked by U-Boot or any other software component but this
   is recommended for production use. chargebyte aims to extend software support for this later.
 
 The idea of the digital DT overlay signature is to ensure that the Device Tree overlay blob is from trusted source and