doc/README.gpt: Fix typo 'a optionnal'

Change the string 'a optionnal' to 'an optional'.

Signed-off-by: Enric Balletbo i Serra <eballetbo@redhat.com>
Reviewed-by: Simon Glass <sjg@chromium.org>

diff --git a/doc/README.gpt b/doc/README.gpt
index 91e397d..cc2a1b7 100644 (file)
--- a/doc/README.gpt
+++ b/doc/README.gpt
@@ -260,7 +260,7 @@ Partition type GUID:
 For created partition, the used partition type GUID is
 PARTITION_BASIC_DATA_GUID (EBD0A0A2-B9E5-4433-87C0-68B6B72699C7).
 
-If you define 'CONFIG_PARTITION_TYPE_GUID', a optionnal parameter 'type'
+If you define 'CONFIG_PARTITION_TYPE_GUID', an optional parameter 'type'
 can specify a other partition type guid:
 
      "uuid_disk=...;name=u-boot,size=60MiB,uuid=...;