Update docs/source/carrierboard_development.rst

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

Author: mhei

docs/source/carrierboard_development.rst

@@ -28,7 +28,7 @@ is ensured.
 Such an EEPROM has to be connected to the ``I2C1`` pins ``SCL`` (Connector X5/41) and ``SDA`` (Connector X5/43) and
 it must be configured for I2C address ``0x50``.
 chargebyte recommends to plan with an EERPOM of at least 32 kB (kilobyte), i.e. a 24C256 [#]_: the Device Tree
-overlay and a digitial signature must fit into it.
+overlay and a digital signature must fit into it.
 Once the customer has created the Device Tree overlay and signature and it fits also into
 e.g. a 16 kB EEPROM, it is usually only a BOM change to populate such a smaller version.